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A telephone numbering plan is a system of allocating and routing telephone numbers in a telephone network. A closed numbering plan, such as found in North America, features fixed length area codes and local numbers. An open numbering plan features variance in length of area code or local number, or both. The term dial plan should not be confused with numbering plan.

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Wikipedia About Area Codes

A telephone numbering plan is a system of allocating and routing telephone numbers in a telephone network. A closed numbering plan, such as found in North America, features fixed length area codes and local numbers. An open numbering plan features variance in length of area code or local number, or both. The term dial plan should not be confused with numbering plan.

Structure

In early telephone systems, connections were made in the central office by telephone operators using patch cords to connect one party to another. If a person wanted to make a phone call, he or she would pick up a phone and wind a crank on the side. The crank was a small generator that would light a lamp at the central office. An operator would see the light and insert their patch cord into a socket and assist the customer with the call connection. The operator would use patch cords to connect the caller to the person being called. 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. 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 1950's with large cities. By 1966, the system was nationwide.

Area codes were assigned based on the length of time a rotary dial phone took to dial the area code. Densely populated areas like New York City, Chicago, Los Angeles, and Detroit had huge call volume and were assigned numbers (212, 312, 213, 313) that could be quickly dialed from a rotary dial phone. 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. 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). This system became unnecessary when touch-tone phones arrived, as the tone allowed instant entry of digits.

Country code - necessary only when dialing to phones in other countries. In international usage, telephone numbers should always be quoted with the country code preceded by a "+", and with spaces in place of hyphens (e.g., "+XX YYY ZZZ ZZZZ"). This allows the reader to choose which Access Code they need to dial from their location. 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"). This can cause confusion as "011" may not be a valid Access Code where the reader is located. (On GSM networks, "+" is an actual character that may be used internally as the international access code, rather than simply being a convention.)

Area code

Area code - 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. Area codes usually indicate geographical areas within one country that are covered by perhaps hundreds of telephone exchanges. It must usually be preceded in the dial string by either the national access code or the international access code and country code. 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.

Search results for Area Codes

Area Code Selection - Vonage VOIP

Find Area Code Selection information at Vonage.com. A better phone service for less.www.vonage.com/avail.php

List of North American Numbering Plan area codes - Wikipedia, the free ...

An area code cannot start with a 0 or 1 because each digit ... split into several area codes in the mid-1990s; the code previously covered all the Caribbean. ...en.wikipedia.org/wiki/List_of_NANP_area_codes

Area Codes Lookup

Look up U.S. area codes and ZIP codes, or find postal and phone information for a town, city, or county.www.area-codes.com/

Area Code Listing, by State/Country

... the switch computer for that area code is located, but is no longer ... refers to a service area being served by two or more area codes simultaneously. ...www.bennetyee.org/ucsd-pages/area.state.html

Area Codes on AnyWho

... an extensive list of area codes across the United States for ... AREA CODES. If you would like to search by area code, please use the Control-F or search ...www.anywho.com/area_codes.html

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News about Area Codes

Agencies criticize how they were portrayed in Cape homeless shelter application

Southeast MissourianIn its application to acquire the Cape Girardeau federal building, the New Life Evangelistic Center described current homeless services in the area and reported what agency directors said about local...http://www.semissourian.com/story/1538024.html

RFID helps 108 Shops keep tracks of merchandise

The Nation - Thailand's English newsIn a bid to encourage the local development of radio-frequency identification (RFID) technology, the Telecommunications Research and Industrial Development Institute (TRIDI) of the National Telecommunications Commission is funding a Bt3.8-million pilot project at the convenience-store chain 108Shops.http://www.nationmultimedia.com/2009/05/11/business/business...

World will change ICANN's future, CEO says

San Francisco ChronicleAlmost from the first day it was created in 1998, ICANN, the Internet Corporation for Assigned Names and Numbers, has been at the heart of a worldwide controversy over who should control the Internet. Set up as a nonprofit in California to coordinate the...http://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2009/05/10/...

Fundraising effort hopes to raise $40 million for Newark Symphony Hall rehab

The Star-LedgerNewark Symphony Hall last month completed $1.5 million in roof repairs and safety upgrades that made the 84-year-old deteriorating building on Broad Street habitable as a rental facility. But the work falls far short of a more significant investment needed...http://www.nj.com/news/index.ssf/2009/05/fundraising_effort_...

World will change ICANN's future, CEO says

San Francisco ChronicleAlmost from the first day it was created in 1998, ICANN, the Internet Corporation for Assigned Names and Numbers, has been at the heart of a worldwide controversy over who should control the Internet. Set up as a nonprofit in California to coordinate the... Related: ICANN - California - Organizations - Non-profit organization - Internet Corporation for Assigned Names and Numbershttp://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2009/05/10/...

News about Area Codes

Springfield native Ron Brace feels right at home with Patriots

Union-News & Sunday RepublicanFOXBORO - Born and bred in Massachusetts, Ron Brace has played football in several area codes across the state; first in 508, then in 617 and now once again in 508. If there was ever doubt, however, about which one of those three-digit combos the ... http://www.masslive.com/sports/index.ssf/2009/05/springfield...

Home Fans Only, Please

Washington PostThe last time these teams met in the postseason, eight years ago, Leonsis bought 1,000 un-sold club seats from Abe Pollin and sold the tickets himself on the Caps Web site, blocking buyers with 412 area codes. And while not too many fans buy playoff ... http://www.washingtonpost.com/wp-dyn/content/article/2009/05...

BlackBerry MVS Server for Cisco Unified Communications Manager Unifies ...

MSN MoneyCentralBlackBerry MVS Server provides IT policies and controls, which can be applied to individuals or groups of users to prevent incoming or outgoing international or long-distance calling, 411 calls, or calls based on specified area codes, giving an ... http://news.moneycentral.msn.com/provider/providerarticle.as...

Phone code switch

Argus Observer OnlineIn filling out student and other records, staff will need to make sure the correct area codes are included in the phone numbers, he said. Mara Slinker, advertising manager at Kinney & Keele Hardware, said, “It is going to be more cumbersome.” Mike ... http://www.argusobserver.com/articles/2009/05/08/news/doc4a0...

Religious bullying is a problem around the world

Christian Science Monitor ... and devout Sunni Muslim, seemed quite shaken, having spent two weeks reporting under threat in Swat, an area once called the Switzerland of Pakistan. Several journalists have already been murdered for a perceived breach of theocratic codes ... http://www.csmonitor.com/2009/0507/p09s01-coop.html

Search results for Area Codes

NPA NXX Area Code Database List and Area Code NPA NXX Lookup Directory ...

NPA NXX Area Code Database List & demographics, free Area Code NPA NXX and Exchange Directory lookup and search.http://www.area-codes.com/

Free Area Code Lookup | WhitePages

Free searches for people and businesses in the U.S. and Canada.http://www.whitepages.com/area-codes

Area codes 416 and 647 - Wikipedia, the free encyclopedia

Area code 416 is one of the original 86 telephone area codes of North America from 1947, and currently serves the single rate centre of Toronto, Ontario.http://en.wikipedia.org/wiki/Area_codes_416_and_647

Corporate | Area Codes | Map Homepage

US Map for Information on area codes in the Qwest calling area.http://www.qwest.com/areaCodes/

Area Code Reverse Directory; Cities, Maps, Zips & Telcos

With this web page you can enter an area code and the cities, state, zip codes, and time zones are returned. Or enter a city and see the area codes within that city. Enter a state ... http://areacodes.langenberg.com/

Wikipedia results for Area Codes

Area Codes (song) - Wikipedia, the free encyclopedia

Area Codes" is a 2001 single off Ludacris's third album, Word of Mouf. The song's lyrics display the U.S. area codes for the women the singer meets in various places.http://en.wikipedia.org/wiki/Area_Codes_%28song%29

Area codes 416 and 647 - Wikipedia, the free encyclopedia

Area code 416 is one of the original 86 telephone area codes of North America from 1947, and currently serves the single rate centre of Toronto, Ontario.http://en.wikipedia.org/wiki/Area_codes_416_and_647

Telephone numbering plan - Wikipedia, the free encyclopedia

A closed numbering plan, such as found in North America, features fixed length area codes and local numbers. An open numbering plan features variance in length of area code or ... http://en.wikipedia.org/wiki/area_codes

Area codes 905 and 289 - Wikipedia, the free encyclopedia

Area code 905 (with overlay Area code 289) is a telephone dialing area for south central Ontario. It includes the Niagara Peninsula, Hamilton, Oshawa, and the suburban Greater ... http://en.wikipedia.org/wiki/Area_codes_905_and_289

Area codes 657 and 714 - Wikipedia, the free encyclopedia

North American area codes 657 and 714 are California telephone area codes which encompass northern Orange County, a portion of Los Angeles County, and portions of Chino Hills in ... http://en.wikipedia.org/wiki/Area_codes_657_and_714
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Obama Budget Cuts To Have Bay Area EffectsTo save federal money, President Barack Obama is planning to cut $17 billion from his $3 trillion spending plan. But those cuts will be felt in several Bay Area programs. Hank...Windows Media - Video

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Answers for Area Codes

maggiearea codes?maggie283*10000000 = 2,830,000,000 That's 2.83 billion numbers. Yes, each citizen of the US could have his/her own number (there are only 300,000,000 people in the U.S.). In fact, each person could ha...playground_baller10How many different area codes are possible with these stipulations?playground_baller10Multiply the number of possible digits in the first place by the number in the second place by the number in the third place. # of digits 2 - 9: 8 # of digits 0,1: 2 # of digits 1-9: 9 8*2*9...jamesdo408What are all the area codes in the bay area?jamesdo408707. 415, 925, 510, 650, 408 & 831CCWhere can I find what numbers will have to change area codes in New Mexico?CCI just looked around some websites...and couldn't find anything about the new re-assigning of area codes. Perhaps they are not available yet. I even looked the the state website. Maybe you can ...Anna HWhat order are area codes arranged by? How can NYC by 212 and LA be 213? What is the system?Anna HWikipedia has a good article on this ... but basically, the largest cities were given area codes that required the least number of pulls on the old rotary phones (212, 213, 312 ... NY, LA, Chicago ......
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