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Area codes 615 and 629 are area codes in Tennessee serving Nashville (Davidson County) and the 12 surrounding counties. 615 is the main area code, while 629 is an overlay covering the same area that began service in 2014. Murfreesboro, Franklin, Brentwood, Gallatin, Hendersonville, and Lebanon are other major cities in the 615/629 service ...
The number pool of the area code was divided between the regions by the national number, which was from two to four digits long, leaving five to three digits, respectively, of the total of 10 digits of a complete telephone number for local telephone number assignments. The national number appeared in local telephone directories.
Map of all Tennessee area codes. 423 – Chattanooga, Johnson City, Kingsport, Bristol: Split from 615 in 1995. 615/629 – Greater Nashville, including Murfreesboro, Mount Juliet: 615 split from 901 in a 1954 flash-cut. The overlay with 629 was created in 2015; 731 – Jackson, Dyersburg, Union City: Split from 901 in 2001.
Each 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.
Although Bermuda and the Caribbean islands had been assigned the area code 809 as early as 1958 by the administrators at AT&T, individual participating countries or territories had no autonomy over their numbering plan as they received centrally assigned central office prefixes that needed to be unique from those of other countries with the same area code.
A telephone prefix is the first set of digits after the country, and area codes of a telephone number. In the North American Numbering Plan countries (country code 1), it is the first three digits of a seven-digit local phone number, the second three digits of the 3-3-4 scheme. In other countries, both the prefix and the number may have ...
Area code dialing is optional in most geographical area codes, except Moscow (area codes 495, 498, 499); it is mandatory for non-geographical area codes. E.123 international and Microsoft formats are used for writing local phone numbers as well; international prefix and country code 7 are replaced with trunk code 8 (or 8~CC ) when dialing a ...
Area codes 876 and 658 are telephone area codes in the North American Numbering Plan (NANP) for Jamaica.. Having telephone service to the United States as early as 1936, it was not until 1962 that Jamaica had a high-capacity link for dial service to the US network, which was operated as part of the NANP numbering plan area 809. 809 was designated for parts of the Caribbean region in 1958, and ...