Search results
Results from the WOW.Com Content Network
A numbering plan area with multiple area codes is called an overlay. Area codes are also assigned for non-geographic purposes. The rules for numbering NPAs do not permit the digits 0 and 1 in the leading position. [1] Area codes with two identical trailing digits are easily recognizable codes (ERC).
An area code overlay is a numbering plan area (NPA) in the North American Numbering Plan (NANP) that has multiple area codes assigned. Overlay complexes are used to add central office prefixes in an NPA to increase the number of available telephone numbers .
A boundary-extension overlay is a type in which one or more neighboring numbering plan areas (with an overlay code or a primary area code) is expanded. Examples include 321 over 407 in central Florida and 778 over 250 in British Columbia. In 1999, 281 was the first of this type, merging with 713 in Houston.
Image map example of The Club. Clicking on a person in the picture causes the browser to load the appropriate article. It is possible to create client-side image maps by hand using a text editor, but doing so requires web designers to know how to code HTML as well as how to enumerate the coordinates of the areas they wish to place over the image.
Here are a couple of examples where an area code is completely surrounded by another from the same state, province or Caribbean country. Area codes 385 and 801 in Salt Lake City, Utah is surrounded by 435; Area code 210 in San Antonio, Texas is surrounded by 830):
The largest telephone numbering plan in North American is the North American Numbering Plan (NANP), serving 25 regions or countries. Other countries maintain an autonomous numbering plan with distinct country codes within the international E.164 specifications by the International Telecommunication Union.
You are free: to share – to copy, distribute and transmit the work; to remix – to adapt the work; Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made.
This macro is placed on the primary listing page for all the area codes in each state or country in the North American Numbering Plan. If there is more than one area code for a state, it should link the state to a page such as [[List of Idaho area codes|Idaho]]. Where there is a page listing all area codes for that state or country, each area ...