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List of area code overlays. 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. [1]
Overlay Area Codes(added)Overlay Area Codes(base)Location557314St. Louis, Missouri (communities such as, ...324904Jacksonville, Jacksonville Beach, ...Central and southeastern OhioEach NPA is identified by one or more numbering plan area codes ( NPA codes, or area codes ), consisting of three digits that are prefixed to each local telephone number having seven digits. A numbering plan area with multiple area codes is called an overlay. Area codes are also assigned for non-geographic purposes.
CodeTerritory Or UseDate200not in use; available for non-geographic ...easily recognizable code (ERC)New Jersey ( Bergen County and Hudson ...19471947Southwestern Connecticut ( Bridgeport, ...1947People also ask
What is an area code overlay?
What is a numbering plan area code?
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By State, Province, and Territory. ( Printable version) Search by City: Enter "city, state" About. The list above includes all area codes. Most are located in the United States. However, many are in Canada, the Caribbean, and the Pacific.
World Map / North America / US / Area Codes. US Area Codes By State. Location of all Area Codes in the US. To faciltiate the millions of phone users, the United States of America is divided into regions known as Area Codes, corresponding to particular geographic telephone dialing areas.
Area Code Overlays. 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. The only concentrated overlays, in Florida, Oregon and British Columbia, have been “unconcentrated,” expanding to cover the entirety of the original area codes.
List of North American Numbering Plan area codes. This is a list of North American telephone area codes in effect for the North American Numbering Plan (NANP). The area to which an area code is officially assigned is known as a Numbering Plan Area (NPA).
Current Numbering (North America 🌎🇺🇸🇨🇦🏝) Map:Map of area codes and time zones for 2022 (selected for use by the 🇺🇸 U.S. State Department!) (map updated 2022-02-20, text updated 2024-05-17) New codes: Table of New area codes, showing the dates, cities, and test numbers (after 2021-01-01 ), updated 2024-05-17.
