Telephone numbering plan: Wikis

  
  

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.A telephone numbering plan is a type of numbering scheme used in telecommunications to allocate and route telephone numbers in a telephone network.^ See Telephone numbering plan.
  • Phone Call Recorder 3 February 2010 18:17 UTC www.modemspy.com [Source type: Reference]
  • Internet Fax Glossary: Phone Number 3 February 2010 18:17 UTC www.extremefax.com [Source type: Reference]

^ Vietnam telephone numbering plan changes .
  • Vietnam telephone numbering plan changes « HowtoCallAbroad.com forums 3 February 2010 18:17 UTC www.howtocallabroad.com [Source type: FILTERED WITH BAYES]

^ Numbers for fixed telephone networks .
  • National Numbering Plan | ANRCETI 3 February 2010 18:17 UTC en.anrceti.md [Source type: Reference]

.A closed numbering plan, such as found in North America, features fixed length area codes and local numbers.^ As a result, regional area codes may have: A fixed length, e.g.
  • Phone Call Recorder 3 February 2010 18:17 UTC www.modemspy.com [Source type: Reference]
  • Find Phone Number 3 February 2010 18:17 UTC findphonenumber.info [Source type: FILTERED WITH BAYES]

^ Numbering plan area .
  • Numbering plan area 3 February 2010 18:17 UTC www.crtc.gc.ca [Source type: Reference]

^ The format of the number in North America is dictated by the North American Numbering Plan (NANP): ( area code )- exchange code - subscriber code .
  • Telephone number - Hill2dot0 3 February 2010 18:17 UTC wiki.hill.com [Source type: Reference]

.An open numbering plan features variance in length of area code or local number, or both.^ Area Code + telephone number, or 011 + telephone number.
  • Glossary of Telephone Terms, The University of Arizona 3 February 2010 18:17 UTC ccit.web.arizona.edu [Source type: FILTERED WITH BAYES]

^ Both of these are dial plan features, as opposed to be any part of the numbering plan.
  • Theo Zourzouvillys / Θεοδόσιος Ζορζοβίλης :: Theo's Blog: SIP & telephone numbers 3 February 2010 18:17 UTC crazygreek.co.uk [Source type: FILTERED WITH BAYES]

^ United States, dial 00 + 1 + area code + local number .
  • Czech Republic Telecommunications - telephone numbers, payphones, cell phones, Prague internet, calling abroad 3 February 2010 18:17 UTC www.myczechrepublic.com [Source type: FILTERED WITH BAYES]

.A dial plan establishes the expected number and pattern of digits for a telephone number.^ See Telephone numbering plan.
  • Phone Call Recorder 3 February 2010 18:17 UTC www.modemspy.com [Source type: Reference]
  • Internet Fax Glossary: Phone Number 3 February 2010 18:17 UTC www.extremefax.com [Source type: Reference]

^ DIALED DIGIT DISPLAY PLANS An all IC device which displays the digits of any telephone number dialed.
  • Matco Publishing's Telephone Related Construction Plans 3 February 2010 18:17 UTC www.matcopublishing.com [Source type: General]

^ Vietnam telephone numbering plan changes .
  • Vietnam telephone numbering plan changes « HowtoCallAbroad.com forums 3 February 2010 18:17 UTC www.howtocallabroad.com [Source type: FILTERED WITH BAYES]

.This includes country codes, access codes, area codes and all combinations of digits dialed.^ Area codes have changed in many of the countries.

^ Geographic USA area codes with 7-digit local dialing .
  • Expanding the North American Numbering Plan 3 February 2010 18:17 UTC www.ionary.com [Source type: Reference]

^ Not all countries utilize city codes.
  • 3.4.13 International telephone numbers | YC Central 3 February 2010 18:17 UTC blog.yc.edu [Source type: Reference]

.For instance, the North American public switched telephone network (PSTN) uses a 10-digit dial plan that includes a 3-digit area code and a 7-digit telephone number.^ See Telephone numbering plan.
  • Phone Call Recorder 3 February 2010 18:17 UTC www.modemspy.com [Source type: Reference]
  • Internet Fax Glossary: Phone Number 3 February 2010 18:17 UTC www.extremefax.com [Source type: Reference]

^ Cross-network use of Internal codes .
  • The National Telephone Numbering Plan - 22 July 2002 3 February 2010 18:17 UTC www.ofcom.org.uk [Source type: Reference]

^ Together, numbering plans and their component area codes direct telephone calls to particular regions on a public switched telephone network ( PSTN ), where they are further routed by the local network.
  • Phone Call Recorder 3 February 2010 18:17 UTC www.modemspy.com [Source type: Reference]

.Most PBXs support variable-length dial plans that use 3 to 11 digits.^ If residents do not use the new 11 digit dialing procedure, the call will not be completed and a recording will instruct callers to hang up and dial again.

^ Other countries have variable length numbering plans, like England where the number grows based upon the density of a given city.

^ NOTE: Calls made using an access code and not just dialing 1 + 918 + seven digit number will not show up on your plan and will not be eligible for credit though Cross Telephone Company.
  • Cross Communications - Telephone - Residential Plans 3 February 2010 18:17 UTC www.crosstel.net [Source type: General]

.Dial plans must comply with the telephone networks to which they connect.^ Telephone number for dial up connections: .
  • Telephone number for dial up connections: | ans 3 February 2010 18:17 UTC www.ans.com.au [Source type: General]

^ Together, numbering plans and their component area codes direct telephone calls to particular regions on a public switched telephone network ( PSTN ), where they are further routed by the local network.
  • Phone Call Recorder 3 February 2010 18:17 UTC www.modemspy.com [Source type: Reference]

^ On campus: Use red "Emergency Use" phone in front office (direct connect to 911) From the switchboard you must dial 9911 Security Desk: .
  • Emergency Telephone Numbers 3 February 2010 18:17 UTC www.jjc.edu [Source type: Reference]

Contents

History

.In early telephone systems, connections were made in the central office by telephone operators using patch cords to connect one party to another.^ The connection from a subscriber to the Central Office.
  • Telecommunications Glossary Long Distance Phone Service Definitions 3 February 2010 18:17 UTC dialingplans.com [Source type: Reference]

^ And lastly, the e-mail purports to originate within AT&T’s corporate offices and includes the name and partial telephone number of an imaginary employee.
  • Boycott Watch - Area Code 809 Phone Call Scam 11 September 2009 0:54 UTC www.boycottwatch.org [Source type: FILTERED WITH BAYES]

^ On campus: Use red "Emergency Use" phone in front office (direct connect to 911) From the switchboard you must dial 9911 Security Desk: .
  • Emergency Telephone Numbers 3 February 2010 18:17 UTC www.jjc.edu [Source type: Reference]

.If a person wanted to make a phone call, he or she would pick up a phone and wind a crank on the side.^ Whichever phone number picks up first gets the call.
  • Welcome to Moapa Valley Telephone 3 February 2010 18:17 UTC www.mvdsl.com [Source type: General]

^ Reverse Telephone Search Finally, distributing a pre-recorded message makes it possible to contact hundreds and thousands of people with just a fraction of the time it would take to make personal calls.
  • Telephone Services, Problems And Reverse Telephone Search 3 February 2010 18:17 UTC wrta.org [Source type: FILTERED WITH BAYES]

^ When you make calls, the Caller ID of the person you are calling will show you are calling from Los Angeles or whichever city code you choose to set up your number.

.The crank was a small generator that would light a lamp at the central office.^ A Bell System policy was established to absorb the cost of central office modifications and any additions necessary to accommodate the 9-1-1 code as part of the general rate base.
  • 9-1-1 Origin & History | National Emergency Number Association 3 February 2010 18:17 UTC www.nena.org [Source type: FILTERED WITH BAYES]

^ As each phone central office (exchange) got new switching equipment, the changeover to the 7-digit phone numbers would be made.
  • Discuss Detroit: 6 Digit Telephone Numbers - What years? 3 February 2010 18:17 UTC atdetroit.net [Source type: General]

^ Telecommunications carriers generally have many divisions, many central offices, thousands of thousands digit blocks, and millions of customers.
  • System and method for determining telephone number blocks available for pooling donation invention 3 February 2010 18:17 UTC www.freshpatents.com [Source type: Reference]

.An operator would see the light and insert their patch cord into a socket and assist the customer with the call connection.^ Prefixes of certain operator assisted services (eg call connect) .
  • ACMA - Telephone numbers have special meanings fact sheet 3 February 2010 18:17 UTC www.acma.gov.au [Source type: FILTERED WITH BAYES]

^ Electronic switching systems and other technological advances helped customers place calls without the help of operators.
  • Telephone Timeline - Greatest Engineering Achievements of the Twentieth Century 3 February 2010 18:17 UTC www.greatachievements.org [Source type: FILTERED WITH BAYES]

^ Your customer service calls are answered quickly by live operators during normal business hours that provide prompt answers or solutions to any questions you may have.
  • Local Telephone Service from Illinois Telephone Corporation 3 February 2010 18:17 UTC illinoistelephone.com [Source type: News]

.The operator would use patch cords to connect the caller to the person being called.^ Outlook Voice Access lets authenticated callers navigate their personal information in their mailbox, place calls, or locate users using dual tone multi-frequency (DTMF), also known as touchtone, inputs or voice inputs.
  • Understanding Unified Messaging Dial Plans: Exchange 2010 Help 3 February 2010 18:17 UTC technet.microsoft.com [Source type: Reference]

^ When you make calls, the Caller ID of the person you are calling will show you are calling from Los Angeles or whichever city code you choose to set up your number.

^ Other parts of the amount paid by the caller are used for the costs of the telephone carrier Telephone Carrier A telephone network operator, providing access to the telephone system using his own (or rented) physical telephone network.

.If the party being called was in another exchange, the operator would use a patch cord to connect to another exchange where an operator elsewhere would finish the connection.^ Requires use of BlackBerry Exchange Server (BES) or BlackBerry Professional Service (BPS).  Additional equipment charges may apply.
  • KMCellular - Data Plans 3 February 2010 18:17 UTC www.kmtel.com [Source type: News]

^ They had a WATS line that allowed unlimited calling in Michigan (only one person in the office could use it at a time - you had to call the company operator and she'd connect you to it - then you DIALED) and it cost his company $2,000 per month.
  • Discuss Detroit: 6 Digit Telephone Numbers - What years? 3 February 2010 18:17 UTC atdetroit.net [Source type: General]

^ In order for the telephone number to be displayed, the party being called must subscribe to Caller ID service and have a Caller ID display unit either attached to the telephone or integrated into the telephone unit.
  • T16842 Approves resolution for the Pinnacles Telephone Company to implement a customer notification and education plan (CNEP) 3 February 2010 18:17 UTC docs.cpuc.ca.gov [Source type: General]
  • T16957 Draft resolution for comments Foresthill Telephone Company request to implement a Customer Notification and Education Plan 3 February 2010 18:17 UTC www.cpuc.ca.gov [Source type: General]

As technology advanced, electro-mechanical switches were introduced and calls were made using "rotary dials".
.Initial use of area codes in the United States began in the 1950s with large cities.^ The different cities have also an area code.

^ United States - (in English) - area code search engine - search by area code or city name (commercial).
  • Links to telephone number pages 3 February 2010 18:17 UTC www.grcdi.nl [Source type: Original source]

^ United States, dial 00 + 1 + area code + local number .
  • Czech Republic Telecommunications - telephone numbers, payphones, cell phones, Prague internet, calling abroad 3 February 2010 18:17 UTC www.myczechrepublic.com [Source type: FILTERED WITH BAYES]

By 1966, the system was nationwide[1].
.Area codes were assigned based on the length of time a rotary dial phone took to dial the area code.^ (On a rotary dial phone, dial 7 - 0 and wait 4 seconds.
  • Sharon Telephone - Custom Calling Information 3 February 2010 18:17 UTC www.sharontelephone.com [Source type: General]

^ (On rotary dial phones, dial 7 - 0 and wait 4 seconds.
  • Sharon Telephone - Custom Calling Information 3 February 2010 18:17 UTC www.sharontelephone.com [Source type: General]

^ A new "area code" for London phones!
  • Telephone Numbers are Obsolete - Mobile and Wireless from eWeek 3 February 2010 18:17 UTC www.eweek.com [Source type: General]

.Densely populated areas like New York City, Chicago, Los Angeles, and Detroit had huge incoming call volume and were assigned numbers (212, 312, 213, 313) that could be quickly dialed from a rotary dial phone.^ Answer: The number a customer can call without dialing the 1+area code.

^ Transfer an incoming call to another number.
  • Citizens Telephone Corporation 3 February 2010 18:17 UTC warrenindiana.com [Source type: General]

^ (On a rotary dial phone, dial 7 - 0 and wait 4 seconds.
  • Sharon Telephone - Custom Calling Information 3 February 2010 18:17 UTC www.sharontelephone.com [Source type: General]

.On a rotary dial phone low digits (1, 2, 3, 4) could dial quickly as the time the rotary dial took to return to the home position was minimal.^ (On a rotary dial phone, dial 7 - 0 and wait 4 seconds.
  • Sharon Telephone - Custom Calling Information 3 February 2010 18:17 UTC www.sharontelephone.com [Source type: General]

^ (On rotary dial phones, dial 7 - 0 and wait 4 seconds.
  • Sharon Telephone - Custom Calling Information 3 February 2010 18:17 UTC www.sharontelephone.com [Source type: General]

^ If 10-digit local dialing is in effect, either the seven- or 10-digit phone number can be dialed.
  • Corporate | Area Codes | Areacode FAQs 11 September 2009 0:54 UTC www.qwest.com [Source type: News]

.High digit numbers (7, 8, 9, 0) on rotary dial phones took much longer to return to the home position and were usually used in less densely populated areas like Vermont (802), rural Texas (915), Tennessee (901), and the Canadian Maritimes (902).^ The only change is in the number of digits being dialed in a regional area.” .

^ (On a rotary dial phone, dial 7 - 0 and wait 4 seconds.
  • Sharon Telephone - Custom Calling Information 3 February 2010 18:17 UTC www.sharontelephone.com [Source type: General]

^ Using a calling card with a 10xxx number: Dial 9, 10xxx, 0, then the area code and the 7 digit number you are calling.
  • Ursinus College Telephone Guide 3 February 2010 18:17 UTC webpages.ursinus.edu [Source type: General]

.This system became unnecessary when touch-tone phones arrived, as the tone allowed instant entry of digits.^ For example, in an analog phone system, a dialer translates the dial string into a sequence of actions such as waiting for dial tone, sending DTMF digits, pausing, and generating post-dial DTMF digits after the callee picks up.
  • RFC 3966 - The tel URI for Telephone Numbers 3 February 2010 18:17 UTC tools.ietf.org [Source type: Reference]

^ Voicemail Our voicemail system allows you to retrieve messages either over the phone or through the web.
  • VoIP Broadband Telecommunications Provider - Local Service for Portland and surrounding areas 3 February 2010 18:17 UTC douglastelecom.com [Source type: General]

^ STATION SPEED DIALING Station speed will allow you to program on your phone, up to 10 frequently called number sequences, up to 22 digits long.
  • Ursinus College Telephone Guide 3 February 2010 18:17 UTC webpages.ursinus.edu [Source type: General]

Structure

.Most telephone numbers belong to the E.164 numbering plan, though some PABXs have internal extensions.^ See Telephone numbering plan.
  • Phone Call Recorder 3 February 2010 18:17 UTC www.modemspy.com [Source type: Reference]
  • Internet Fax Glossary: Phone Number 3 February 2010 18:17 UTC www.extremefax.com [Source type: Reference]

^ E.164 defines the format of telephone numbers.
  • Understanding Unified Messaging Dial Plans: Exchange 2010 Help 3 February 2010 18:17 UTC technet.microsoft.com [Source type: Reference]

^ Numbering Plan for Telephone Services - Geographic numbers .
  • Numbering Plan for Telephone Services - Geographic numbers 3 February 2010 18:17 UTC www.cra.ba [Source type: Reference]

The E.164 numbering plan for telephone numbers includes:
.Apart from the use of numbering plans for telephone numbers, they are also used in routing of SS7 signalling messages as part of the Global Title.^ Telephone numbers: not as easy as they look .
  • Telephone numbers: not as easy as they look - OneIS Blog 3 February 2010 18:17 UTC www.oneis.co.uk [Source type: FILTERED WITH BAYES]

^ Use multiple 0845 telephone numbers .
  • 0845 Numbers, 0845, Local Rate Numbers, Telecoms World Plc 3 February 2010 18:17 UTC www.telecomsworldplc.co.uk [Source type: General]

^ Numbering Plan for Telephone Services - Geographic numbers .
  • Numbering Plan for Telephone Services - Geographic numbers 3 February 2010 18:17 UTC www.cra.ba [Source type: Reference]

.In public land mobile networks, the E.212 numbering plan is used for subscriber identities (e.g.^ Mobile numbers are typically used within public land mobile telephony networks (e.g.
  • Numbering Plan for Ireland - ComReg 3 February 2010 18:17 UTC www.odtr.ie [Source type: Reference]

^ Numbers for mobile telephone networks and paging .
  • National Numbering Plan | ANRCETI 3 February 2010 18:17 UTC en.anrceti.md [Source type: Reference]

^ Together, numbering plans and their component area codes direct telephone calls to particular regions on a public switched telephone network (PSTN), where they are further routed by the local network.
  • Find Phone Number 3 February 2010 18:17 UTC findphonenumber.info [Source type: FILTERED WITH BAYES]

stored in the .GSM SIM) while E.214 is used for routing database queries across PSTN networks.^ Lowering IT Cost Starts With Your Database Organizations across the world are using grid computing to make the most of their IT resources.
  • north american numbering plan Resources | ZDNet 3 February 2010 18:17 UTC updates.zdnet.com [Source type: General]

^ That system sends a query to a first database using the 800 number and the caller's Numbering Plan Area...
  • Telephone connection to a nearby dealer - Google Patent Search 3 February 2010 18:17 UTC www.google.com [Source type: Reference]

^ Some GSM networks will not accept emergency calls from phones without a SIM card, or even require a SIM card that has credit.
  • Emergency telephone number - Psychology Wiki 3 February 2010 18:17 UTC psychology.wikia.com [Source type: Reference]

Country code

.Country code - necessary only when dialing to phones in other countries.^ The E.164 standard regulates country codes at the international level and sets a maximum length limit on a full international phone number.
  • Find Phone Number 3 February 2010 18:17 UTC findphonenumber.info [Source type: FILTERED WITH BAYES]

^ You can reach these offices at the following telephone numbers, which include country or city codes if you are outside the local dialing area.
  • IRS's Telephone Numbers 3 February 2010 18:17 UTC www.unclefed.com [Source type: General]

^ Country code +881 is used for satellite mobile phones, with the next digit identifying the operator: 0 or 1 is reserved for ICO Global Communications ; 2 or 3 is Ellipso ; 6 or 7 is Iridium ; and 8 or 9 is Globalstar .
  • LincMad's Telephone Country Codes 3 February 2010 18:17 UTC www.lincmad.com [Source type: Reference]

.In international usage, telephone numbers are quoted with the country code preceded by a "+", and with spaces in place of hyphens (e.g., "+XX YYY ZZZ ZZZZ").^ In an E.164 numbering plan for public telephone systems, each assigned number contains a country code (CC), a national destination code (NDC), and a subscriber number (SN).
  • Understanding Unified Messaging Dial Plans: Exchange 2010 Help 3 February 2010 18:17 UTC technet.microsoft.com [Source type: Reference]

^ Besides, it is needed to comply with international Recommendations which state that international numbers shall be at the format : international prefix of the calling country + country code + national significant number.
  • The numbering change in overseas departements 3 February 2010 18:17 UTC www.arcep.fr [Source type: Reference]

^ Virtual phone numbers are available in many area codes, allowing you to have a phone presence in many different parts of the country.

.This allows the reader to choose which Access Code (also known as International Dialing Digit[2]) they need to dial from their location.^ Outside Australia - dial your international direct dialling access code, then 61 13 2221.
  • Personal - Accounts - Telephone banking - Available 24 hours a day for your convenience - Commonwealth Bank Group 3 February 2010 18:17 UTC www.commbank.com.au [Source type: General]

^ Telephone services will get pretty confusing a hundred years from now when they have 15-digit are codes, though.

^ Although e-mail and text messaging often facilitate communication worldwide, there is still a need to dial international telephone numbers occasionally.
  • How Do I Dial International Telephone Numbers? 3 February 2010 18:17 UTC www.wisegeek.com [Source type: FILTERED WITH BAYES]

.However, it is often quoted together with the international access code which must precede it in the dial string, especially in the United States and Canada (e.g., "011-XX-YYY-ZZZ-ZZZZ").^ United States and Canada; 1 digit in Australia.
  • Find Phone Number 3 February 2010 18:17 UTC findphonenumber.info [Source type: FILTERED WITH BAYES]

^ United States, dial 00 + 1 + area code + local number .
  • Czech Republic Telecommunications - telephone numbers, payphones, cell phones, Prague internet, calling abroad 3 February 2010 18:17 UTC www.myczechrepublic.com [Source type: FILTERED WITH BAYES]

^ Free Area Code Search Free United States and Canada area code lookup.
  • WebSearch - 501 area code 11 September 2009 0:54 UTC www.websearch.com [Source type: General]

.This can cause confusion as "011" may not be a valid Access Code where the reader is located.^ The messages in your mailbox cannot be accessed without a valid pass code.
  • Central Oklahoma Telephone Co. 3 February 2010 18:17 UTC cotc.net [Source type: General]

^ May 1994: Service Access Code 500, a special area code (+1 500) is announced for use by Personal Communications Services to provide location-independent numbering.
  • World Telephone Numbering Guide 3 February 2010 18:17 UTC www.wtng.info [Source type: Reference]

^ With such an arrangement operators or customers, wherever located, may use that designation as a "destination code" to reach the required office through the dial switching network.
  • Survey of Telephone Switching - Chapter 2 3 February 2010 18:17 UTC www.telephonetribute.com [Source type: FILTERED WITH BAYES]

.On GSM networks, "+" is an actual character that may be used internally as the international access code, rather than simply being a convention.^ Cross-network use of Internal codes .
  • The National Telephone Numbering Plan - 22 July 2002 3 February 2010 18:17 UTC www.ofcom.org.uk [Source type: Reference]

^ Rather than cite the specifics of the FCC mandate (FCC Docket 95-116), I will leave it to the reader to review the mandate itself, which is being published in three different phases.
  • Local Number Portability Overview 3 February 2010 18:17 UTC www.tekelec.com [Source type: Reference]

^ New area codes across the country, like the new 575 area code, use a different format than other area codes in the past, which could only have a “1” or a “0” as the middle digit.
  • New Mexico Area Code Change Information — Qwest Communications 11 September 2009 0:54 UTC www.qwest.com [Source type: General]

Area code

.Area codes are also known as Numbering Plan Areas (NPAs).^ Area Code + telephone number, or 011 + telephone number.
  • Glossary of Telephone Terms, The University of Arizona 3 February 2010 18:17 UTC ccit.web.arizona.edu [Source type: FILTERED WITH BAYES]

^ The first three digits define the numbering plan area (NPA), also known as the area code .
  • North American Numbering Plan - Hill2dot0 3 February 2010 18:17 UTC wiki.hill.com [Source type: Reference]

^ The numbering plan "area code" consists of three digits ( Figure 2-1 ).
  • Survey of Telephone Switching - Chapter 2 3 February 2010 18:17 UTC www.telephonetribute.com [Source type: FILTERED WITH BAYES]

.These are necessary (for the most part) only when dialed from outside the code area, from mobile phones, and (especially within North America) from within overlay plans.^ Overlay Area Code 973.

^ Overlay Area Code 718.

^ Overlay Area Code 503.

.Area codes usually indicate geographical areas within one country that are covered by perhaps hundreds of telephone exchanges, although the correlation to geographical area is becoming obsolete.^ Exchanges in Area Code 469 ...
  • WebSearch - 469 area code 11 September 2009 0:54 UTC www.websearch.com [Source type: FILTERED WITH BAYES]

^ Area Code + telephone number, or 011 + telephone number.
  • Glossary of Telephone Terms, The University of Arizona 3 February 2010 18:17 UTC ccit.web.arizona.edu [Source type: FILTERED WITH BAYES]

^ Networks within country code +882 .
  • LincMad's Telephone Country Codes 3 February 2010 18:17 UTC www.lincmad.com [Source type: Reference]

[3] .It must usually be preceded in the dial string by either the national access code or the international access code and country code.^ To call another country, you must know that country's international access code.
  • Telephone | International Center | University of Michigan 3 February 2010 18:17 UTC internationalcenter.umich.edu [Source type: FILTERED WITH BAYES]

^ The E.164 standard regulates country codes at the international level and sets a maximum length limit on a full international phone number.
  • Find Phone Number 3 February 2010 18:17 UTC findphonenumber.info [Source type: FILTERED WITH BAYES]

^ You can reach these offices at the following telephone numbers, which include country or city codes if you are outside the local dialing area.
  • IRS's Telephone Numbers 3 February 2010 18:17 UTC www.unclefed.com [Source type: General]

.For non-geographical numbers, as well as mobile telephones outside of the United States and Canada, the "area code" does not correlate to a particular geographic area..^ Your telephone number, including current area code, will not change.
  • Verizon | New Area Code 681 Info 11 September 2009 0:54 UTC www22.verizon.com [Source type: FILTERED WITH BAYES]

^ United States and Canada; 1 digit in Australia.
  • Find Phone Number 3 February 2010 18:17 UTC findphonenumber.info [Source type: FILTERED WITH BAYES]

^ Canada - (in English) - list of area codes for Canada.
  • Links to telephone number pages 3 February 2010 18:17 UTC www.grcdi.nl [Source type: Original source]

Local number

.The local number (or subscriber number) must always be dialed in its entirety.^ For international dialing, subscribers must dial 00, then a digit assigned to one of the above mentioned long distance carriers.
  • Numbering in Columbian Telephone Numbering Plan | ICT Regulation Toolkit 3 February 2010 18:17 UTC www.ictregulationtoolkit.org [Source type: Reference]

^ Posted October 23rd, 2009 by philwells Subscribers in Southern California's 760 Area Code Must Now Dial All 10 Digits .
  • telephone numbering plan | UCAN 3 February 2010 18:17 UTC www.ucan.org [Source type: General]

^ If 10-digit local dialing is in effect, either the seven- or 10-digit phone number can be dialed.
  • Corporate | Area Codes | Areacode FAQs 11 September 2009 0:54 UTC www.qwest.com [Source type: News]

.The first few digits in the local number typically indicate smaller geographical areas or individual telephone exchanges.^ Geographic numbers (local numbers) .
  • Numbering Plan | Department of Broadband, Communications and the Digital Economy 3 February 2010 18:17 UTC www.dbcde.gov.au [Source type: Reference]

^ Geographic USA area codes with 7-digit local dialing .
  • Expanding the North American Numbering Plan 3 February 2010 18:17 UTC www.ionary.com [Source type: Reference]

^ Type in the first three numbers of your seven digit telephone number.

.In mobile networks they may indicate a network provider in case the area code does not.^ (Mobile) Don't ever search for area codes again!
  • north american numbering plan Resources | ZDNet 3 February 2010 18:17 UTC updates.zdnet.com [Source type: General]

^ Area codes shown in parentheses in (green) are not yet in use; in each such case, the area code immediately above in the table applies to the listings shown in green.
  • LincMad's Area Codes & Cities 11 September 2009 0:54 UTC www.lincmad.com [Source type: FILTERED WITH BAYES]

^ Together, numbering plans and their component area codes direct telephone calls to particular regions on a public switched telephone network (PSTN), where they are further routed by the local network.
  • Find Phone Number 3 February 2010 18:17 UTC findphonenumber.info [Source type: FILTERED WITH BAYES]

.Callers from a number with a given area/country code usually do not need to (but optionally may) include the particular area/country code in the number dialed, which enables shorter "dial strings" to be used.^ However, for countries with dialing codes but not ISO codes, we have to be pragmatic and use the dialing code instead.
  • Telephone numbers: not as easy as they look - OneIS Blog 3 February 2010 18:17 UTC www.oneis.co.uk [Source type: FILTERED WITH BAYES]

^ Area Code + telephone number, or 011 + telephone number.
  • Glossary of Telephone Terms, The University of Arizona 3 February 2010 18:17 UTC ccit.web.arizona.edu [Source type: FILTERED WITH BAYES]

^ If the country uses area codes, drop the initial zero of the area code, then dial the rest of the number.
  • Rick Steves' Europe: Telephone Tips 3 February 2010 18:17 UTC www.ricksteves.com [Source type: Reference]

.Devices that dial phone numbers automatically can include the full number with area and access codes, since there is no additional annoyance related to dialing extra digits.^ Area Code + telephone number, or 011 + telephone number.
  • Glossary of Telephone Terms, The University of Arizona 3 February 2010 18:17 UTC ccit.web.arizona.edu [Source type: FILTERED WITH BAYES]

^ The numbering plan "area code" consists of three digits ( Figure 2-1 ).
  • Survey of Telephone Switching - Chapter 2 3 February 2010 18:17 UTC www.telephonetribute.com [Source type: FILTERED WITH BAYES]

^ Dial the third person’s phone number.
  • Knology: Telephone, Cable, Internet 3 February 2010 18:17 UTC www.prairiewave.com [Source type: General]

Standards

.Although the International Telecommunication Union (ITU) has attempted to promote common standards among nation states, numbering plans take different formats in different parts of the world.^ Change made: see part 4 in revised National Numbering Plan .
  • Numbering Plan for Trinidad and Tobago � First Draft 3 February 2010 18:17 UTC tatt.org.tt [Source type: Reference]

^ E.164 ] International Telecommunications Union, "The international public telecommunication numbering plan", Recommendation E.164, May 1997.
  • RFC 3966 - The tel URI for Telephone Numbers 3 February 2010 18:17 UTC tools.ietf.org [Source type: Reference]

^ Although the International Telecommunication Union (ITU) has attempted to promote common standards among nation states, numbering plans take different formats in different parts of the world.
  • Find Phone Number 3 February 2010 18:17 UTC findphonenumber.info [Source type: FILTERED WITH BAYES]

.For example, the ITU recommends that member states adopt 00 as their international access code.^ For example, the ITU recommends that member states adopt 00 as their international access code.
  • Find Phone Number 3 February 2010 18:17 UTC findphonenumber.info [Source type: FILTERED WITH BAYES]

^ Although the International Telecommunication Union (ITU) has attempted to promote common standards among nation states, numbering plans take different formats in different parts of the world.
  • Find Phone Number 3 February 2010 18:17 UTC findphonenumber.info [Source type: FILTERED WITH BAYES]

^ However, as these recommendations are not binding on member states, some have not, such as the United States, Canada, and other countries and territories participating in the North American Numbering Plan.
  • Find Phone Number 3 February 2010 18:17 UTC findphonenumber.info [Source type: FILTERED WITH BAYES]

.However, as these recommendations are not binding on member states, some have not, such as the United States, Canada, and other countries and territories participating in the North American Numbering Plan.^ North American Numbering Plan Administration -- a call for tomorrow .
  • Ryan Croke is learning.: Numbering Archives 3 February 2010 18:17 UTC pactlab.spcomm.uiuc.edu [Source type: FILTERED WITH BAYES]

^ United States and Canada; 1 digit in Australia.
  • Find Phone Number 3 February 2010 18:17 UTC findphonenumber.info [Source type: FILTERED WITH BAYES]

^ Includes all countries in the North American Numbering Plan Administration area, and Mexico.
  • Links to telephone number pages 3 February 2010 18:17 UTC www.grcdi.nl [Source type: Original source]

.The international numbering plan establishes country codes, that is, area codes that denote nations or groups of nations.^ Area Code + telephone number, or 011 + telephone number.
  • Glossary of Telephone Terms, The University of Arizona 3 February 2010 18:17 UTC ccit.web.arizona.edu [Source type: FILTERED WITH BAYES]

^ UK area codes, mobile numbers or international calls).
  • Number Translation Services 0845 to Mobile 0800 to Mobile Voice to Email Fax to Email Services & More - Starter Plan Features 3 February 2010 18:17 UTC www.numberstore.com [Source type: FILTERED WITH BAYES]

^ The numbering plan "area code" consists of three digits ( Figure 2-1 ).
  • Survey of Telephone Switching - Chapter 2 3 February 2010 18:17 UTC www.telephonetribute.com [Source type: FILTERED WITH BAYES]

.The E.164 standard regulates country codes at the international level and sets a maximum length limit on a full international phone number (15 digits).^ The E.164 standard regulates country codes at the international level and sets a maximum length limit on a full international phone number.
  • Find Phone Number 3 February 2010 18:17 UTC findphonenumber.info [Source type: FILTERED WITH BAYES]

^ E.164 limits numbers to 15 digits.
  • The tel URI for Telephone Numbers 3 February 2010 18:17 UTC www.cs.columbia.edu [Source type: Reference]

^ It then searches for the country code, area code and phone number.
  • Enum 3 February 2010 18:17 UTC www.enum.org [Source type: Reference]

.However, it is each country's responsibility to define the numbering within its own network.^ However, it is each country's responsibility to define the numbering within its own network.
  • Find Phone Number 3 February 2010 18:17 UTC findphonenumber.info [Source type: FILTERED WITH BAYES]

^ Number: (if entered this number must be a telephone number (with area code if known) within the country, without the international prefix/number) .
  • International dialing codes to Dominican Republic – Santo Domingo 11 September 2009 0:54 UTC www.timeanddate.com [Source type: News]

^ However, as these recommendations are not binding on member states, some have not, such as the United States, Canada, and other countries and territories participating in the North American Numbering Plan.
  • Find Phone Number 3 February 2010 18:17 UTC findphonenumber.info [Source type: FILTERED WITH BAYES]

As a result, regional area codes may be:
.
  • A fixed length, e.g., three digits in the United States and Canada; two digits in Brazil; one digit in Australia and New Zealand,
  • A variable length, e.g., between 2 and 5 in Germany, Argentina and in Austria; between 1 and 5 in Japan; 1 or 2 in Syria and Peru; between 2 and 5 in the United Kingdom, or
  • Incorporated into the subscriber's number, as is the case in many countries, such as Spain or Norway.^ United States and Canada; 1 digit in Australia.
    • Find Phone Number 3 February 2010 18:17 UTC findphonenumber.info [Source type: FILTERED WITH BAYES]

    ^ Within a zone, the ITU-T assigns country codes that are one, two, or three digits.
    • North American Numbering Plan - Hill2dot0 3 February 2010 18:17 UTC wiki.hill.com [Source type: Reference]

    ^ Germany and in Austria; between 1 and 3 in Japan; 1 or 2 in Israel.
    • Find Phone Number 3 February 2010 18:17 UTC findphonenumber.info [Source type: FILTERED WITH BAYES]

    .This is known as a "closed" telephone numbering plan.^ Numbering Plan for Telephone Services - Geographic numbers .
    • Numbering Plan for Telephone Services - Geographic numbers 3 February 2010 18:17 UTC www.cra.ba [Source type: Reference]

    ^ This is known as a "closed" telephone numbering plan.
    • Find Phone Number 3 February 2010 18:17 UTC findphonenumber.info [Source type: FILTERED WITH BAYES]

    ^ The International Telecommunication Union ( ITU ) has developed an international numbering plan, referred to as the E.164 plan that provides unique worldwide numbers for public telephone systems.
    • Keep760.org: CPUC Commissioner Simon's Dissent 3 February 2010 18:17 UTC keep760.org [Source type: FILTERED WITH BAYES]

    In some cases a trunk code (usually 0) must still be dialed, as in Belgium, Italy, Switzerland, South Africa and some locations within the NANP.
.Generally the area codes determine the cost of a call.^ Generally the area codes determine the cost of a call.
  • Find Phone Number 3 February 2010 18:17 UTC findphonenumber.info [Source type: FILTERED WITH BAYES]

^ Numbering Plan Area (also called Area Code).
  • Numbering Plan for Trinidad and Tobago � First Draft 3 February 2010 18:17 UTC tatt.org.tt [Source type: Reference]

^ Calls within an area code and often a small group of adjacent or overlapping area codes are normally charged at a lower rate than outside the area.
  • Find Phone Number 3 February 2010 18:17 UTC findphonenumber.info [Source type: FILTERED WITH BAYES]

.Calls within an area code and often a small group of adjacent or overlapping area codes are normally charged at a lower rate than outside the area code.^ Calls within an area code and often a small group of adjacent or overlapping area codes are normally charged at a lower rate than outside the area.
  • Find Phone Number 3 February 2010 18:17 UTC findphonenumber.info [Source type: FILTERED WITH BAYES]

^ Outside the 215/610 Area Codes .
  • Ursinus College Telephone Guide 3 February 2010 18:17 UTC webpages.ursinus.edu [Source type: General]

^ Calls are charged at a timed rate.
  • ACMA - Telephone numbers have special meanings fact sheet 3 February 2010 18:17 UTC www.acma.gov.au [Source type: FILTERED WITH BAYES]

.(This is often not the case in the United States where rates to call within a state [regulated by that state's public utilities commission] are often higher than rates to call across the country [generally determined by competition].^ Calls within an area code and often a small group of adjacent or overlapping area codes are normally charged at a lower rate than outside the area.
  • Find Phone Number 3 February 2010 18:17 UTC findphonenumber.info [Source type: FILTERED WITH BAYES]

^ New area codes across the country, like the new 575 area code, use a different format than other area codes in the past, which could only have a “1” or a “0” as the middle digit.
  • New Mexico Area Code Change Information — Qwest Communications 11 September 2009 0:54 UTC www.qwest.com [Source type: General]

^ Within the EU, call charges will not exceed the cost of a domestic long-distance call; calling from elsewhere, rates should be comparable to the cost of calling an ordinary landline in Europe.
  • LincMad's Telephone Country Codes 3 February 2010 18:17 UTC www.lincmad.com [Source type: Reference]

.In some United States locations where area codes cover more territory, different rates will apply within a single area code depending on the distance to the number called.^ Area Code + telephone number, or 011 + telephone number.
  • Glossary of Telephone Terms, The University of Arizona 3 February 2010 18:17 UTC ccit.web.arizona.edu [Source type: FILTERED WITH BAYES]

^ This covers inbound calls from the United States - Continental (48 states) .
  • Virtual PBX, Hosted Telephone Systems, VoIP Internet Telephone Service, 800 Toll Free Numbers 3 February 2010 18:17 UTC www.pbxinteractive.net [Source type: General]

^ Know the area code numbers and their meaning before making a call.
  • Telephone Savings Tips 3 February 2010 18:17 UTC www.puco.ohio.gov [Source type: General]

.Rates are determined from rate centers, and rates are set in zones of zero to six miles, six to twelve miles, and so on.^ The software may further be configured to determine a six month forecast based on the total number of unavailable telephone numbers for the rate center associated with the thousands blocks.
  • System and method for determining telephone number blocks available for pooling donation invention 3 February 2010 18:17 UTC www.freshpatents.com [Source type: Reference]

^ A target terminating traffic/ACO area may include a particular geographical area served by a wire center that may be within a particular rate center area which identifies a set of addresses.
  • METHODS AND SYSTEMS FOR MANAGING AN INVENTORY OF TELEPHONE NUMBERS - Patent application 3 February 2010 18:17 UTC www.faqs.org [Source type: Reference]

^ You can contact competitors and find out what they charge to determine what your price range should be if your aren't sure of the rates you want to set.

.This has changed dramatically with the deregulation of local phone services.^ Local Exchange Service Local phone calls.
  • Telecommunications Glossary Long Distance Phone Service Definitions 3 February 2010 18:17 UTC dialingplans.com [Source type: Reference]

^ Only a change in your local phone service provider will have an impact.

^ Note Your wireless phone may not be usable with other wireless plans when you change service.
  • Maine Public Advocate: Telephone Service: Ratewatcher Guide 3 February 2010 18:17 UTC www.maine.gov [Source type: General]

) .Each year, more customers switch to a fixed rate, "all-you-can-dial" plan covering the state, the United States, and/or all North America generally (as of May 2008 and exclusive of taxes) for approximately $30 per month.^ Tax preparation for the 2008 Tax year is available.
  • IRS's Telephone Numbers 3 February 2010 18:17 UTC www.unclefed.com [Source type: General]

^ All plans are month-to-month.
  • SpeechPhone > for individuals > rates > Hire Mandi 3 February 2010 18:17 UTC www.speechphone.net [Source type: General]

^ Or, you may use these speed numbers to reach A.T. & T. and MCI. Such calls will generally cost you more since these providers impose a calling card fee (usually around $0.75 per call).
  • Ursinus College Telephone Guide 3 February 2010 18:17 UTC webpages.ursinus.edu [Source type: General]

.Competition with cable telephony and Voice over Internet Protocol services have helped drive the cost of service down for residential and business customers.^ The cost is the same for both residential and business customers.
  • Sierra Telephone's Voice Mail Services 3 February 2010 18:17 UTC sierratelephone.com [Source type: General]

^ This goes for the cable and internet service.
  • Digital Telephone - Digital Telephone 3 February 2010 18:17 UTC www.cox.com [Source type: General]

^ In addition to 1 800 numbers, the virtual office service includes custom greetings, auto attendant, voicemail, Internet fax receiving, call transfer and many more features you would expect from very expensive business phone system, all available from Phone at a very affordable cost.
  • Telephone Directory of Washington D.C. 3 February 2010 18:17 UTC wadc.uscity.net [Source type: General]

.Special area codes are generally used for free, premium rate, mobile phone systems (in countries where the mobile phone system is caller pays) and other special rate numbers.^ Area Code + telephone number, or 011 + telephone number.
  • Glossary of Telephone Terms, The University of Arizona 3 February 2010 18:17 UTC ccit.web.arizona.edu [Source type: FILTERED WITH BAYES]

^ Are users going to have control over how this system is used with their phone numbers?
  • Enum 3 February 2010 18:17 UTC www.enum.org [Source type: Reference]

^ (Mobile) Don't ever search for area codes again!
  • north american numbering plan Resources | ZDNet 3 February 2010 18:17 UTC updates.zdnet.com [Source type: General]

.There are however some exceptions, in some countries (e.g., Egypt), calls are charged at the same rate regardless of area and in others (e.g., the UK) an area code is occasionally treated as two parts with different rates.^ Same as Area Code 214.

^ UK area codes, mobile numbers or international calls).
  • Number Translation Services 0845 to Mobile 0800 to Mobile Voice to Email Fax to Email Services & More - Starter Plan Features 3 February 2010 18:17 UTC www.numberstore.com [Source type: FILTERED WITH BAYES]

^ Ever wonder where some area code is?
  • Area Code Map | Reference.com 11 September 2009 0:54 UTC ask.reference.com [Source type: General]

Dialing plans

Example

In the U.S., some typical dial plans include:
  • Internal extension numbers of two, three, or four digits.
  • Local numbers of seven or ten digits, which may be preceded by a 9 if required to access an outside line.
  • Long distance numbers of eleven digits, consisting of a 1, then a three-digit area code, then a seven-digit number; preceded by a 9 if required.
  • International numbers of any length starting with 011 and preceded by a 9 if required.

Open dialing plans

.An open dialing plan is one in which there are different dialing arrangements for local and long distance telephone calls.^ Operator-assisted long distance domestic telephone calls .

^ This feature can be used for both local and long distance calls.
  • TCT Local Telephone Service 3 February 2010 18:17 UTC www.tctwest.net [Source type: General]

^ All long-distance calls will require 1+10-digit dialing.
  • New Mexico Area Code Change Information — Qwest Communications 11 September 2009 0:54 UTC www.qwest.com [Source type: General]

.This means that to call another number within the same city or area, callers need dial only the number, but for calls outside the area, an area code is required.^ If you place a call to a number within other area codes by dialing in this manner, Sprint will process the call.
  • Telephone Service, Undergraduate Housing, Student Affairs, Northwestern University 3 February 2010 18:17 UTC www.northwestern.edu [Source type: General]

^ Area Code + telephone number, or 011 + telephone number.
  • Glossary of Telephone Terms, The University of Arizona 3 February 2010 18:17 UTC ccit.web.arizona.edu [Source type: FILTERED WITH BAYES]

^ Transfer an incoming call to another number.
  • Citizens Telephone Corporation 3 February 2010 18:17 UTC warrenindiana.com [Source type: General]

.In this situation it is customary to show the area code in parentheses, signifying that in some cases the area code is optional or is not required, as suggested by ITU-T Recommendation E.123.^ Ever wonder where some area code is?
  • Area Code Map | Reference.com 11 September 2009 0:54 UTC ask.reference.com [Source type: General]

^ Due to the increasing use of overlays, the map now shows only the first area code in an overlay area , with a plus sign to indicate a current or planned overlay.
  • Area Code Map | Reference.com 11 September 2009 0:54 UTC ask.reference.com [Source type: General]

^ Some telephone equipment used by businesses will not recognize the new area code until that equipment has been reprogrammed or upgraded.
  • New Mexico Area Code Change Information — Qwest Communications 11 September 2009 0:54 UTC www.qwest.com [Source type: General]

.The area code is prefixed by a trunk code (usually "0"), which is omitted when calling from outside the country.^ Enter your area code/prefix.
  • Cavalier Telephone local & long distance phone plans, compare Cavalier Telephone plans, rates | PhoneDog 3 February 2010 18:17 UTC tech-faq.phonedog.com [Source type: General]

^ Outside the 215/610 Area Codes .
  • Ursinus College Telephone Guide 3 February 2010 18:17 UTC webpages.ursinus.edu [Source type: General]

^ Country Code : +30 International Call Prefix : 00 .
  • Telephone numbers in Greece Information & Telephone numbers in Greece Links at HealthHaven.com 3 February 2010 18:17 UTC wiki.healthhaven.com [Source type: Reference]

To call a number in Sydney, Australia for example:
.Note that calls originating within NSW but outside Sydney may be dialed as an 8-digit number without the area code, but this does not make them a "local call" or unit fee.^ If you place a call to a number within other area codes by dialing in this manner, Sprint will process the call.
  • Telephone Service, Undergraduate Housing, Student Affairs, Northwestern University 3 February 2010 18:17 UTC www.northwestern.edu [Source type: General]

^ Store your frequently called numbers and call them by dialing two digits.

^ We call the two and then three digit code the prefix or exchange number.
  • Privateline.com Telephone History: EXchange Numbers 3 February 2010 18:17 UTC www.privateline.com [Source type: FILTERED WITH BAYES]

.Such calls will be charged at the caller's prevailing long-distance rates.^ NOTE: Any calls forwarded to long distance numbers will be charged to you.

^ Making a Long Distance Call (toll call) .
  • Ursinus College Telephone Guide 3 February 2010 18:17 UTC webpages.ursinus.edu [Source type: General]

^ Long distance calls were a big deal.
  • Discuss Detroit: 6 Digit Telephone Numbers - What years? 3 February 2010 18:17 UTC atdetroit.net [Source type: General]

  • (02) xxxx xxxx (outside New South Wales - the area code is required)
  • +61 2 xxxx xxxx (outside Australia; notice the dropped 0)
.Note, in all calls to outside a country, the "+" is not dialed, it signifies that first the international access code must be dialed, followed by the country code, in this case 61, followed by the number.^ Dial the number you want to call.

^ (To make an international call: Dial 8, 0, 1, 1, country code, city code, phone number, your authorization code.
  • Calling Plans :: Networking & Technical Services :: The College of New Jersey 3 February 2010 18:17 UTC www.tcnj.edu [Source type: General]

^ NGNs can be called from outside the country ...
  • SAYNOTO0870.COM - Ofcom review of UK Telephone Numbering Plan 3 February 2010 18:17 UTC www.saynoto0870.com [Source type: FILTERED WITH BAYES]

.When using a mobile telephone to place a call, many models do allow the + to be entered and this is internally converted to the correct access code, based on caller location, as the call is made.^ Caller directed routing of a telephone call based on a dialed suffix .
  • Telephone connection to a nearby dealer - Google Patent Search 3 February 2010 18:17 UTC www.google.com [Source type: Reference]

^ Direct dial calls can be made via a telephone company using the company's access number.
  • Japan National Tourism Organization | Arrange Your Travel | Essential Info | Telephone & Postal Services 3 February 2010 18:17 UTC www.jnto.go.jp [Source type: General]

^ Outlook Voice Access lets authenticated callers navigate their personal information in their mailbox, place calls, or locate users using dual tone multi-frequency (DTMF), also known as touchtone, inputs or voice inputs.
  • Understanding Unified Messaging Dial Plans: Exchange 2010 Help 3 February 2010 18:17 UTC technet.microsoft.com [Source type: Reference]

.New Zealand has a special case of an open dialing plan.^ You can configure the VoIP security mode either when you're creating a new dial plan or after you create a dial plan using the EMC or the Set-UMDialPlan cmdlet in the Shell.
  • Understanding Unified Messaging Dial Plans: Exchange 2010 Help 3 February 2010 18:17 UTC technet.microsoft.com [Source type: Reference]

^ ATIS appears to begin from the assumption that the new plan should retain as much as possible of the old plan, removing 7-digit local dialing in the process.
  • Expanding the North American Numbering Plan 3 February 2010 18:17 UTC www.ionary.com [Source type: Reference]

^ What makes CIGNA HealthCare benefit plans in New Jersey so special?
  • CIGNA in New Jersey 3 February 2010 18:17 UTC www.cigna.com [Source type: General]

.While most nations require the area code to be dialed only if it is different, in New Zealand, one needs to dial the area code if the phone is outside the local calling area.^ Only 8-digit local (seven digits in some areas) and new-NPA dialing is permitted.
  • Expanding the North American Numbering Plan 3 February 2010 18:17 UTC www.ionary.com [Source type: Reference]

^ Local or national call .
  • Lancashire County Council Trading Standards - Business advice - Special services telephone numbers 3 February 2010 18:17 UTC www.tradingstandards.gov.uk [Source type: FILTERED WITH BAYES]

^ Q. What phone services will not change due to a new area code?
  • Corporate | Area Codes | Areacode FAQs 11 September 2009 0:54 UTC www.qwest.com [Source type: News]

For example, to call a phone number in Dunedin:
.
  • xxx xxxx - within Dunedin
  • (03) xxx xxxx - within the 03 area code, but not within Dunedin (e.g.^ Within the 215/610 Area Codes .
    • Ursinus College Telephone Guide 3 February 2010 18:17 UTC webpages.ursinus.edu [Source type: General]

    ^ Number: (if entered this number must be a telephone number (with area code if known) within the country, without the international prefix/number) .
    • International dialing codes to Dominican Republic – Santo Domingo 11 September 2009 0:54 UTC www.timeanddate.com [Source type: News]

    ^ If you place a call to a number within other area codes by dialing in this manner, Sprint will process the call.
    • Telephone Service, Undergraduate Housing, Student Affairs, Northwestern University 3 February 2010 18:17 UTC www.northwestern.edu [Source type: General]

    from Christchurch or Queenstown
  • (03) xxx xxxx - within New Zealand, outside the 03 area code
  • +64 3 xxx xxxx - outside New Zealand
.In the United States, Canada, and other countries or territories using the North American Numbering Plan (NANP), the trunk code is '1', which is also (by coincidence) the country calling code.^ North American Numbering Plan Administration -- a call for tomorrow .
  • Ryan Croke is learning.: Numbering Archives 3 February 2010 18:17 UTC pactlab.spcomm.uiuc.edu [Source type: FILTERED WITH BAYES]

^ North American Numbering Plan (NANP) is the formal name for the telephone numbering system used in country code +1 (equivalent to World Zone 1).
  • World Telephone Numbering Guide 3 February 2010 18:17 UTC www.wtng.info [Source type: Reference]

^ How does ENUM affect the North American Numbering Plan (NANP)?
  • Enum 3 February 2010 18:17 UTC www.enum.org [Source type: Reference]

.The same rule also applies in many parts of the NANP, including all areas of Canada that still have an open dialing plan.^ Virtual phone numbers are available in many area codes, allowing you to have a phone presence in many different parts of the country.

^ The important question would they include revenue sharing and whether or not they would be included within 'inclusive' calling plans many of us have.
  • SAYNOTO0870.COM - Ofcom review of UK Telephone Numbering Plan 3 February 2010 18:17 UTC www.saynoto0870.com [Source type: FILTERED WITH BAYES]

^ UNLIMITED Calls within the U.S., Canada and Puerto Rico are included in this service plan.
  • INVIVNI Broadband Telephone Service 3 February 2010 18:17 UTC www.invivni.com [Source type: General]

.This is not universal, as there are locations within the United States that allow long distance calls within the same area code to be dialed as seven digits.^ Same as Area Code 214.

^ Same as Area Code 713.

^ Local calling areas (geographic areas within which all calls are local and do not require long-distance calling).
  • Corporate | Area Codes | Areacode FAQs 11 September 2009 0:54 UTC www.qwest.com [Source type: News]

.In Canada, the trunk code (also known as the long distance access code) must also be dialed along with the area code for long distance calls even within the same area code.^ Same as Area Code 214.

^ Local calling areas (geographic areas within which all calls are local and do not require long-distance calling).
  • Corporate | Area Codes | Areacode FAQs 11 September 2009 0:54 UTC www.qwest.com [Source type: News]

^ Numbering Plan Area (also called Area Code).
  • Numbering Plan for Trinidad and Tobago � First Draft 3 February 2010 18:17 UTC tatt.org.tt [Source type: Reference]

For example, to call a number in Regina:
  • xxx xxxx (within Regina, Lumsden and other local areas)
  • 1 (306) xxx xxxx (within the 306 area code, but not within the Regina local calling area (e.g., Saskatoon))
  • 1 (306) xxx xxxx (anywhere within the NANP outside the 306 area code)
  • +1 (306) xxx xxxx (outside NANP)
To call a number in San Francisco, California the dialing procedure will vary:
  • xxx xxxx (local calls, no area code required)
  • 1 (415) xxx xxxx (outside San Francisco, and within the U.S., Canada, and other countries in the NANP)[4]
  • +1 (415) xxx xxxx (outside the NANP - 1 is the country code for the U.S.)
.However, in parts of North America, especially where a new area code overlays an older area code, dialing the area code, or 1 + the area code, is now required even for local calls, which means that the NANP is now closed in certain areas and open in others.^ A. If you will have a new area code, notify the people who call you.
  • Corporate | Area Codes | Areacode FAQs 11 September 2009 0:54 UTC www.qwest.com [Source type: News]

^ Therefore, some states have required that new area codes be assigned on an overlay basis.
  • North American Numbering Plan - Hill2dot0 3 February 2010 18:17 UTC wiki.hill.com [Source type: Reference]

^ Some local calls may require 10-digit dialing when calling to a different area code.
  • Corporate | Area Codes | Areacode FAQs 11 September 2009 0:54 UTC www.qwest.com [Source type: News]

.Dialing from mobile phones is different in the U.S., as the trunk code is not necessary, although it is still necessary for calling all long distance numbers from a mobile phone in Canada.^ Saves time when dialing numbers, especially long distance numbers.
  • Albany Mutual Telephone :: Your local source for Telephone, Internet and Digital TV service in central Minnesota 3 February 2010 18:17 UTC www.albanytel.com [Source type: General]

^ This includes on and off campus calls, as well as long distance numbers.
  • Glossary of Telephone Terms, The University of Arizona 3 February 2010 18:17 UTC ccit.web.arizona.edu [Source type: FILTERED WITH BAYES]

^ NOTE: Any calls forwarded to long distance numbers will be charged to you.

.(Most mobile phones today can be programmed to automatically add a frequently-called area code as a prefix, allowing calls within the desired area to be dialed by the user as seven-digit numbers, though sent by the phone as 10-digit numbers.^ If 10-digit local dialing is in effect, either the seven- or 10-digit phone number can be dialed.
  • Corporate | Area Codes | Areacode FAQs 11 September 2009 0:54 UTC www.qwest.com [Source type: News]

^ If you place a call to a number within other area codes by dialing in this manner, Sprint will process the call.
  • Telephone Service, Undergraduate Housing, Student Affairs, Northwestern University 3 February 2010 18:17 UTC www.northwestern.edu [Source type: General]

^ Store your frequently called numbers and call them by dialing two digits.

)
.In some parts of the United States, especially northeastern states such as Pennsylvania served by Verizon Communications, the full 10-digit number must be dialed.^ The D-E-F digits of the 10 digit NANP number in a telephone number.
  • Numbering Plan for Trinidad and Tobago � First Draft 3 February 2010 18:17 UTC tatt.org.tt [Source type: Reference]

^ The plan allows digits 2-9 to be the first digits of an 8-digit (or, in some areas, 7-digit) local telephone number.
  • Expanding the North American Numbering Plan 3 February 2010 18:17 UTC www.ionary.com [Source type: Reference]

^ If 10-digit local dialing is in effect, either the seven- or 10-digit phone number can be dialed.
  • Corporate | Area Codes | Areacode FAQs 11 September 2009 0:54 UTC www.qwest.com [Source type: News]

.If the call is not local, the call will not complete unless the dialed number is preceded by a 1.^ Dial the number you want to call.

^ Unlimited calling to/from HK, + HK local number .
  • Plan Detail - AIC Traditional Home Telephone Service 3 February 2010 18:17 UTC www.aichometelephone.com [Source type: News]

^ You can reach these offices at the following telephone numbers, which include country or city codes if you are outside the local dialing area.
  • IRS's Telephone Numbers 3 February 2010 18:17 UTC www.unclefed.com [Source type: General]

.In this situation, where the area code is not optional, the area code is not enclosed in parentheses.^ If a website is used by local and international users, then the local area code prefix (usually a zero) is in parentheses to signify that foreigners should not add it, e.g.

^ Area codes that have not yet taken effect are shown with a green line and the area code in parentheses.
  • LincMad's 2008 Area Code Map 11 September 2009 0:54 UTC www.lincmad.com [Source type: FILTERED WITH BAYES]

^ US cities and area codes shown in parentheses in (green) are not yet in use; in each such case, long distance area codes immediately above in the table apply to the US cities and area codes shown in green .
  • Area Codes on AnyWho 11 September 2009 0:54 UTC www.anywho.com [Source type: General]

Thus:
  • 610 xxx xxxx (local calls, area code required; one of two completion options for mobile phones within the U.S.)
  • 1 610 xxx xxxx (intra-area code charged calls; second of two completion options for mobile phones within the U.S.)
  • +1 610 xxx xxxx (outside the NANP)
.In areas served by AT&T in California, pre-recorded messages instruct customers that use of the local area code within the area code is not permissible and that only the xxx xxxx format is permitted.^ Area codes beginning 08 use several formats.

^ Area codes like 07nnn use the 07nnn nnnnnn format.

^ Area codes like 02n use the 02n nnnn nnnn format.

.Many organizations have private branch exchange systems which permit dialing the access digit(s) for an outside line (usually 9 or 8), a "1" and finally the local area code and xxx xxxx in areas without overlays.^ Digits needed for accessing an outside line, for example, are not included in local numbers.
  • RFC 3966 - The tel URI for Telephone Numbers 3 February 2010 18:17 UTC tools.ietf.org [Source type: Reference]
  • The tel URI for Telephone Numbers 3 February 2010 18:17 UTC www.cs.columbia.edu [Source type: Reference]
  • The tel URI for Telephone Numbers 3 February 2010 18:17 UTC www.cs.columbia.edu [Source type: Reference]

^ Geographical area codes start with the digit 2.
  • Telephone numbers in Greece Information & Telephone numbers in Greece Links at HealthHaven.com 3 February 2010 18:17 UTC wiki.healthhaven.com [Source type: Reference]

^ Area Code 202 Exchanges starting with 2.
  • 202 Area Code Reverse Phone Number Lookup and Exchange Lookup. Reverse Lookup for Exchanges beginning with 2 11 September 2009 0:54 UTC www.directory-assistance.net [Source type: News]

.This "feature" is unintentionally helpful for employees who reside in one area code and work in an area code with one, two, or three adjacent area codes.^ There are currently two-, three-, and four-digit area codes.
  • Telephone numbers in Greece Information & Telephone numbers in Greece Links at HealthHaven.com 3 February 2010 18:17 UTC wiki.healthhaven.com [Source type: Reference]

^ A. For each new area code change in the Qwest territory, there are two distinct time periods, the "transition" and the "mandatory" dialing periods.
  • Corporate | Area Codes | Areacode FAQs 11 September 2009 0:54 UTC www.qwest.com [Source type: News]

^ We call the two and then three digit code the prefix or exchange number.
  • Privateline.com Telephone History: EXchange Numbers 3 February 2010 18:17 UTC www.privateline.com [Source type: FILTERED WITH BAYES]

."1+" dialing to any area code by an employee can be done quickly, with all exceptions processed by the private branch exchange and passed onto the public switched telephone network.^ Area Code + telephone number, or 011 + telephone number.
  • Glossary of Telephone Terms, The University of Arizona 3 February 2010 18:17 UTC ccit.web.arizona.edu [Source type: FILTERED WITH BAYES]

^ It can be in the public telephone network, a private telephone network, or the Internet.
  • RFC 3966 - The tel URI for Telephone Numbers 3 February 2010 18:17 UTC tools.ietf.org [Source type: Reference]

^ The termination point can be in the public telephone network, a private telephone network or the Internet.
  • The tel URI for Telephone Numbers 3 February 2010 18:17 UTC www.cs.columbia.edu [Source type: Reference]
  • The tel URI for Telephone Numbers 3 February 2010 18:17 UTC www.cs.columbia.edu [Source type: Reference]

.Open and closed dialing plans should not be confused with open and closed numbering plans.^ Note: ^ indicates that you should wait for a second dial tone before dialing the next number.
  • AT&T Access Numbers 3 February 2010 18:17 UTC www.usa.att.com [Source type: FILTERED WITH BAYES]

^ Both of these are dial plan features, as opposed to be any part of the numbering plan.
  • Theo Zourzouvillys / Θεοδόσιος Ζορζοβίλης :: Theo's Blog: SIP & telephone numbers 3 February 2010 18:17 UTC crazygreek.co.uk [Source type: FILTERED WITH BAYES]

^ A dial plan and a numbering plan are 2 different things in my world.
  • Theo Zourzouvillys / Θεοδόσιος Ζορζοβίλης :: Theo's Blog: SIP & telephone numbers 3 February 2010 18:17 UTC crazygreek.co.uk [Source type: FILTERED WITH BAYES]

.A closed numbering plan, such as found in North America, features fixed length area codes and local numbers.^ The numbering plan "area code" consists of three digits ( Figure 2-1 ).
  • Survey of Telephone Switching - Chapter 2 3 February 2010 18:17 UTC www.telephonetribute.com [Source type: FILTERED WITH BAYES]

^ (NXX) NXX XXXX - fixed-length 10-digit national numbers: 3-digit area codes followed by 7-digit local numbers.
  • World Telephone Numbering Guide 3 February 2010 18:17 UTC www.wtng.info [Source type: Reference]

^ Due to the increasing use of overlays, the map now shows only the first area code in an overlay area , with a plus sign to indicate a current or planned overlay.
  • Area Code Map | Reference.com 11 September 2009 0:54 UTC ask.reference.com [Source type: General]

.An open numbering plan, as found in assorted countries that have not yet standardized, features variance in length of area code or local number, or both.^ It then searches for the country code, area code and phone number.
  • Enum 3 February 2010 18:17 UTC www.enum.org [Source type: Reference]

^ Due to the increasing use of overlays, the map now shows only the first area code in an overlay area , with a plus sign to indicate a current or planned overlay.
  • Area Code Map | Reference.com 11 September 2009 0:54 UTC ask.reference.com [Source type: General]

^ In an E.164 numbering plan for public telephone systems, each assigned number contains a country code (CC), a national destination code (NDC), and a subscriber number (SN).
  • Understanding Unified Messaging Dial Plans: Exchange 2010 Help 3 February 2010 18:17 UTC technet.microsoft.com [Source type: Reference]

.Closed dialing plans are rare where numbering plans are open.^ For example, NANP uses the terms "Numbering Plan", despite the fact from what I can see it's both a numbering plan and a dial plan using my definitions of the terms explained below.
  • Theo Zourzouvillys / Θεοδόσιος Ζορζοβίλης :: Theo's Blog: SIP & telephone numbers 3 February 2010 18:17 UTC crazygreek.co.uk [Source type: FILTERED WITH BAYES]

^ There are two types of callers who access the Unified Messaging system using the subscriber access number configured on a UM dial plan: unauthenticated callers and authenticated callers.
  • Understanding Unified Messaging Dial Plans: Exchange 2010 Help 3 February 2010 18:17 UTC technet.microsoft.com [Source type: Reference]

^ Both of these are dial plan features, as opposed to be any part of the numbering plan.
  • Theo Zourzouvillys / Θεοδόσιος Ζορζοβίλης :: Theo's Blog: SIP & telephone numbers 3 February 2010 18:17 UTC crazygreek.co.uk [Source type: FILTERED WITH BAYES]

Closed dialing plans

.A closed numbering plan is one in which the subscriber's number is a standard length, and a closed dialing plan is one in which the subscriber's number is used for all calls, even in the same area.^ Subscriber access numbers are also called pilot numbers.
  • Understanding Unified Messaging Dial Plans: Exchange 2010 Help 3 February 2010 18:17 UTC technet.microsoft.com [Source type: Reference]

^ Dial the number you want to call.

^ Numbering Plan Area (also called Area Code).
  • Numbering Plan for Trinidad and Tobago � First Draft 3 February 2010 18:17 UTC tatt.org.tt [Source type: Reference]

.This has traditionally been the case in small countries and territories where area codes have not been required.^ Number: (if entered this number must be a telephone number (with area code if known) within the country, without the international prefix/number) .
  • International dialing codes to Dominican Republic – Santo Domingo 11 September 2009 0:54 UTC www.timeanddate.com [Source type: News]

^ "B3.1.2 Geographic Numbers shall not be Adopted or otherwise used for a Customer outside of the relevant geographic area except where the Customer has specified that they require a Telephone Number with the relevant Geographic Area Code."
  • The National Telephone Numbering Plan - 22 July 2002 3 February 2010 18:17 UTC www.ofcom.org.uk [Source type: Reference]

^ The name of each country or territory is preceded by its ISO two-letter country code.
  • LincMad's Telephone Country Codes 3 February 2010 18:17 UTC www.lincmad.com [Source type: Reference]

.However, there has been a trend in many countries towards making all numbers a standard length, and incorporating the area code into the subscriber's number.^ It then searches for the country code, area code and phone number.
  • Enum 3 February 2010 18:17 UTC www.enum.org [Source type: Reference]

^ Numbering Plan Area (also called Area Code).
  • Numbering Plan for Trinidad and Tobago � First Draft 3 February 2010 18:17 UTC tatt.org.tt [Source type: Reference]

^ Area Code: 3 digits Subscriber Number: 7 digits Background .
  • World Telephone Numbering Guide 3 February 2010 18:17 UTC www.wtng.info [Source type: Reference]

.This usually makes the use of a trunk code obsolete.^ Central Office (CO) Codes N11 Codes (Easily Recognizable Code) N00 Codes (Easily Recognizable Code usually used for toll-free services Carrier Identification Codes (CICs) Vertical Service Codes (VSC) .
  • Numbering Plan for Trinidad and Tobago � First Draft 3 February 2010 18:17 UTC tatt.org.tt [Source type: Reference]

^ The international country codes were to be removed from service as of 1 July 1998, making use of NANP mandatory for these islands.
  • World Telephone Numbering Guide 3 February 2010 18:17 UTC www.wtng.info [Source type: Reference]

^ Making calls within a European country: About half of all European countries use area codes (like we do) — the other half uses a direct-dial system without area codes.
  • Rick Steves' Europe: Telephone Tips 3 February 2010 18:17 UTC www.ricksteves.com [Source type: Reference]

For example, to call Oslo in Norway before 1992, one would dial:
  • xxx xxx (within Oslo - no area code required)
  • (02) xxx xxx (within Norway - outside Oslo)
  • +47 2 xxx xxx (outside Norway)
After 1992, this changed to a closed eight-digit numbering plan, e.g.:
  • 22xx xxxx (within Norway - including Oslo)
  • +47 22xx xxxx (outside Norway)
In other countries, such as France, Belgium, Switzerland, South Africa and some parts of North America where the dialing plan is closed, the trunk code is retained for domestic calls, whether local or national, e.g.,
  • Paris 01 xx xx xx xx (outside France +33 1 xxxx xxxx)
  • Brussels 02 xxx xxxx (outside Belgium +32 2 xxx xxxx)
  • Geneva 022 xxx xxxx (outside Switzerland +41 22 xxx xxxx)
  • Cape Town 021 xxx xxxx (outside South Africa +27 21 xxx xxxx)
  • New York 1 212 xxx xxxx (outside the North American Numbering Plan +1 212 xxx xxxx)
while some, like Italy, require the initial zero to be dialled, even for calls from outside the country, e.g.,
  • Rome 06 xxxx xxxx (outside Italy +39 06 xxxx xxxx)
.Further, there are locations with closed dialing plans in the NANP that require the full phone number including area code to be dialed for all calls, but the trunk code is required for only long distance calls, even in the same area code.^ All phone numbers for the depots are further up this page.
  • More Hard-To-Find Telephone Numbers - Amazon and Home Delivery Network :: ivorysky 3 February 2010 18:17 UTC www.ivorysky.com [Source type: General]

^ Saves time when dialing numbers, especially long distance numbers.
  • Albany Mutual Telephone :: Your local source for Telephone, Internet and Digital TV service in central Minnesota 3 February 2010 18:17 UTC www.albanytel.com [Source type: General]

^ This feature restricts access to the long distance toll network (all Dial 1+ numbers) thereby allowing calls only to local exchange areas.
  • Sierra Telephone's Voice Mail Services 3 February 2010 18:17 UTC sierratelephone.com [Source type: General]

.While the use of full national dialing is less user-friendly than using only a local number without the area code, the increased use of mobile phones, which require full national dialing and can store numbers, means that this is of decreasing importance.^ Are users going to have control over how this system is used with their phone numbers?
  • Enum 3 February 2010 18:17 UTC www.enum.org [Source type: Reference]

^ Use multiple 0800 phone numbers .

^ What happens if a user dials an emergency number?
  • Enum 3 February 2010 18:17 UTC www.enum.org [Source type: Reference]

It also makes easier to display numbers in the international format, as no trunk code is required—hence a number in Prague, Czech Republic, can now be displayed as:
  • 2xx xxx xxx (inside Czech Republic)
  • +420 2xx xxx xxx (outside Czech Republic)
as opposed to before September 21, 2002:[5]
  • 02 / xx xx xx xx (inside Czech Republic)
  • +420 2 / xx xx xx xx (outside Czech Republic)

Satellite phone numbering plans

.Satellite phones are usually issued with numbers in a special country calling code.^ Numbering Plan Area (also called Area Code).
  • Numbering Plan for Trinidad and Tobago � First Draft 3 February 2010 18:17 UTC tatt.org.tt [Source type: Reference]

^ It then searches for the country code, area code and phone number.
  • Enum 3 February 2010 18:17 UTC www.enum.org [Source type: Reference]

^ If you need to make a phone call to someone in another country and you are not quite sure how to dial the number, then this service should hopefully help you.
  • International dialing codes to Dominican Republic – Santo Domingo 11 September 2009 0:54 UTC www.timeanddate.com [Source type: News]

.For example, Inmarsat satellite phones are issued with code +870, while Global Mobile Satellite System providers, such as Iridium, issue numbers in country code +881 ("Global Mobile Satellite System") or +882 ("International Networks").^ Carriers marked with an asterisk (∗) provide regional satellite mobile phones.
  • LincMad's Telephone Country Codes 3 February 2010 18:17 UTC www.lincmad.com [Source type: Reference]

^ Networks within country code +882 .
  • LincMad's Telephone Country Codes 3 February 2010 18:17 UTC www.lincmad.com [Source type: Reference]

^ Country code 800 is Universal International Freephone Numbers (UIFN).
  • LincMad's Telephone Country Codes 3 February 2010 18:17 UTC www.lincmad.com [Source type: Reference]

.Some satellite phones are issued with ordinary phone numbers, such as Globalstar satellite phones issued with NANP telephone numbers.^ The D-E-F digits of the 10 digit NANP number in a telephone number.
  • Numbering Plan for Trinidad and Tobago � First Draft 3 February 2010 18:17 UTC tatt.org.tt [Source type: Reference]

^ Country code +881 is used for satellite mobile phones, with the next digit identifying the operator: 0 or 1 is reserved for ICO Global Communications ; 2 or 3 is Ellipso ; 6 or 7 is Iridium ; and 8 or 9 is Globalstar .
  • LincMad's Telephone Country Codes 3 February 2010 18:17 UTC www.lincmad.com [Source type: Reference]

^ The plan allows digits 2-9 to be the first digits of an 8-digit (or, in some areas, 7-digit) local telephone number.
  • Expanding the North American Numbering Plan 3 February 2010 18:17 UTC www.ionary.com [Source type: Reference]

  • Inmarsat:+870: SNAC (Single Network Access Code)
  • ICO Global: +881 0, +881 1.
  • Ellipso: +881 2, +881 3.
  • Iridium: +881 6, +881 7.
  • Globalstar: +881 8, +881 9.
  • Emsat: +882 13.
  • Thuraya: +882 16.
  • ACeS: +882 20.

Special services

.Some country calling codes are issued for special services, or for international/inter regional zones.^ Here, I am thinking that they are legitimate for callthrough numbers to reach international destinations, rather than that some companies will want to keep them for call centres .
  • SAYNOTO0870.COM - Ofcom review of UK Telephone Numbering Plan 3 February 2010 18:17 UTC www.saynoto0870.com [Source type: FILTERED WITH BAYES]

^ The N11 dialing pattern for Special Service Codes (911, 411, etc.
  • Expanding the North American Numbering Plan 3 February 2010 18:17 UTC www.ionary.com [Source type: Reference]

^ Each individual accepted for service will be issued a personal authorization code, which will be required to place any calls from a residence hall phone.
  • Calling Plans :: Networking & Technical Services :: The College of New Jersey 3 February 2010 18:17 UTC www.tcnj.edu [Source type: General]

Numbering plans by global regions

Dial plan syntax

.The following syntax used to identify a dial plan in a digit map is adapted from [RFC 2705].^ A mobile user can use at least two dial plans, namely the dial plan for the network that he is currently visiting and the dial plan for his home network.
  • RFC 3966 - The tel URI for Telephone Numbers 3 February 2010 18:17 UTC tools.ietf.org [Source type: Reference]
  • The tel URI for Telephone Numbers 3 February 2010 18:17 UTC www.cs.columbia.edu [Source type: Reference]

^ A mobile user can use at least two dial plans, namely the dial plan for the network that he is currently visiting and the dial plan for the user's home network.
  • The tel URI for Telephone Numbers 3 February 2010 18:17 UTC www.cs.columbia.edu [Source type: Reference]

^ ATIS appears to begin from the assumption that the new plan should retain as much as possible of the old plan, removing 7-digit local dialing in the process.
  • Expanding the North American Numbering Plan 3 February 2010 18:17 UTC www.ionary.com [Source type: Reference]

Dial Plan Syntax
To specify a 
Enter the following
Result
Digit
0 1 2 3 4 5 6 7 8 9 *
Identifies a specific digit (do not use #)
Range
[digit-digit]
Identifies any digit dialed that is included in the range
Range
[digit-digit, digit]
Specifies a range as a comma separated list
Wild card
x
x matches any single digit that is dialed
Wild card
.
. matches an arbitrary number of digits
Timer
T
Indicates that an additional time out period of 4 seconds should take place before automatic dialing starts
Some dial plan examples using the above syntax look as follows:
Dial Plan Syntax Examples
For calls to
Users dial
Dial plan
Internal Extension
a two digit number
xx
Local Number
9 (if required for an outside line) and then a seven digit number
9xxxxxxxT
Emergency
911
911
Local Operators
9 (if required for an outside line) then 0
90T
Long Distance
9 (if required), 1, area code and local number
91xxxxxxxxxx
International
9 (if required), 011, any number of additional digits
9011x.T

Numbering Plan Indicator

.The Numbering Plan Indicator (NPI) is a number which is defined in the ITU standard Q.713, paragraph 3.4.2.3.3, indicating the numbering plan of the attached telephone number.^ This Statement follows on from the Consultation Document, The National Telephone Numbering Plan of 19 March 2003 ( www.oftel.gov.uk/publications/numbering/2003/ntnp0303.htm ) (the Consultation Document).
  • The National Telephone Numbering Plan - 22 July 2002 3 February 2010 18:17 UTC www.ofcom.org.uk [Source type: Reference]

^ A Statement issued by the Director General of Telecommunications following a consultation on proposals to publish a National Telephone Numbering Plan.
  • The National Telephone Numbering Plan - 22 July 2002 3 February 2010 18:17 UTC www.ofcom.org.uk [Source type: Reference]

^ Telephone Numbers outside of the Plan and the Annex to the Condition .
  • The National Telephone Numbering Plan - 22 July 2002 3 February 2010 18:17 UTC www.ofcom.org.uk [Source type: Reference]

NPIs can be found in SCCP and SMS messages. As of 2004 the following numbering plans and their respective Numbering Plan Indicator values have been defined:
NPI Description Standard
0 unknown
1 ISDN Telephony E.164
2 generic
3 data X.121
4 telex F69
5 maritime mobile E.210 and E.211
6 land mobile E.212
7 ISDN/mobile E.214

See also

References

  1. ^ http://www.lincmad.com/map1970s.html
  2. ^ "http://countrycode.org/how-to-call"
  3. ^ Saunders, Amy (2009-05-16). "Cell-phone age turns the 614 into just numbers". The Columbus Dispatch. http://www.dispatch.com/live/content/local_news/stories/2009/05/16/0_AREA_CODES.ART_ART_05-16-09_A1_5JDSM84.html. Retrieved 2009-08-21. 
  4. ^ Note: From mobile phones the initial 1 is not required, but is recommended.
  5. ^ "Číslovací plán veřejných telefonních sítí" (in Czech) (PDF). Telekomunikační věstník (Czech Telecommunication Office) 9/2000. 2000-09-25. ISSN 0862-724X. http://www.ctu.cz/1/download/cislovaci-plan-verejnych-telefonnich-siti_1114435245.pdf. Retrieved 2006-10-13.  (in Czech language)
    Numbering Plan for Public Telephone Networks - annotation of the article in English

Simple English

A telephone numbering plan is a system used in telecommunications to give telephone numbers to customers and to route telephone calls in a telephone network. A closed numbering plan imposes a fixed length to numbers, such as in North America (10-digit). An open numbering plan may have telephone numbers that vary in length.

A dial plan establishes the type of telephone number in a given area. This includes country codes, access codes, area codes and all combinations of digits dialed. For instance, the North American public switched telephone network (PSTN) uses a phone numbers with a 3-digit area code and a 7-digit telephone number.



Citable sentences

Up to date as of December 13, 2010

Here are sentences from other pages on Telephone numbering plan, which are similar to those in the above article.








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