Search results
Results From The WOW.Com Content Network
Area code 679 has been reserved as a future overlay for the 313 territory. [2] [3] In February 2000, the area code was assigned as a second area code in the county of Wayne in the southeastern part of the U.S. state of Michigan. [4] However, the relief schedule was cancelled in April 2000, and the implementation of the overlay was suspended. [5 ...
1947: Area codes 313, 517 and 616 are three of the original 86 area codes in the North American Numbering Plan. 1961: Area code 906 was created in the first split of 616. 1993: Area code 810 was created in the first split of 313. 1997: Area code 734 was created in the second split of 313. and area code 248 was created in the first split of 810.
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 .
In honor of March 13, otherwise known as "313 Day" to Detroiters, here's some fun facts about Detroit's history with telephones.
1955: split to give New Brunswick its own 506 area code; Newfoundland was added to the service area when it joined Canada in 1949. When 506 was created, Newfoundland was assigned to the new code along with New Brunswick. In 1962, Newfoundland received its own code, 709. 2014: overlaid by 782; 851 reserved as a third area code for the region. 903
Telephone numbers listed in 1920 in New York City having three-letter exchange prefixes. In the United States, the most-populous cities, such as New York City, Philadelphia, Boston, and Chicago, initially implemented dial service with telephone numbers consisting of three letters and four digits (3L-4N) according to a system developed by W. G. Blauvelt of AT&T in 1917. [1]
Each NPA was identified by a three-digit area code used as a prefix to each local telephone number. The United States received seventy-seven area codes, and Canada nine. The initial system of numbering plan areas and area codes was expanded rapidly during the ensuing decades, and established the North American Numbering Plan (NANP).
313 for the Caribbean; 314 for EUCOM; 315 for INDOPACOM; 317 for Alaska; 318 for CENTCOM; 319 for Canada (Canadian Switched Network (CSN)) Other area codes are assigned to functional areas: 20x for interface with the United Kingdom's Defence Fixed Telecommunications Service (DFTS) 606 for interface with NATO's Core Network (NCN)