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1951
- During the initial trials of direct distance dialing (DDD) in 1951, area code 318 was temporarily used as a destination code for San Francisco.
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History. During the initial trials of direct distance dialing (DDD) in 1951, area code 318 was temporarily used as a destination code for San Francisco. Oakland and San Francisco had separate toll switches, so that calls had to be routed accordingly depending on the final destination.
Apr 25, 2024 · In the early 1950s, area code 318 was used in San Francisco to route certain calls for several years. However, San Francisco ultimately found a solution to their routing and translating problem, which enabled them to return to their 415 area code and hand over the 318 area code to Shreveport.
Area code 318 is a telephone area code in the North American Numbering Plan (NANP) for the northern and central parts of the U.S. state of Louisiana. The area code was created in 1957 in a split of Louisiana's original area code 504.
Sunday, May 26, 2024. 318 is an area code located in the state of Louisiana, US. The largest city it serves is Shreveport.
Area code 318 - Louisiana. Reverse phone lookup, search by area code or region. Local time and map of Louisiana.
This area code was assigned on January 1st, 1957. On January 1st, 1957 it went into service. 318 is a General Purpose Code. Dialing pattern for local calls within the same NPA (area code) is 7D.
1957. Area code 504 was split with 318 covering all of the western area, extending to both the northern and southern borders of the state. 1999. Area code 318 was split with 337 covering the southwest area of the state.
