Area codes 415 and 628

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458/541 775 702 928 442/760 916 530 707 209 559 831 805 661 858 909 951 619 213 323 707 916 415 650 510 925 408 209 831 805 661 442/760 310/424 747/818 626 909 951 949 562 657/714
The map to the right is now clickable; click on an area code to go to the page for that area code. The area code in red is Area Code 415; all others in blue are California area codes.

Area code 415 is a California telephone area code that was one of the first three original area codes established in California in October 1947. It serves San Francisco and its northern suburbs in Marin County (across the Golden Gate Bridge). It will be overlaid with area code 628 on February 21, 2015.

History[edit]

415 was one of the original three area codes in California, established in 1947. It originally covered central California, south of area code 916 and north of area code 213. It stretched from Sacramento in the north to Bakersfield in the south.[1]

In 1950, 415 was extended along the North Coast to the Oregon border, while 916 was rotated to cover the northeastern corner of the state.[2] As part of this realignment, Sacramento was shifted from 415 to 916, while Bakersfield moved to 213.

For a short time in the early 1950s, area code 318 was temporarily used, initially by customers in Englewood, New Jersey participating in the first customer direct distance dialing experiment to reach San Francisco as well as some areas north of the Golden Gate.[3] In 1953, the entire Bay Area was "reunited" in using area code 415.

Area 415 has been split thrice:

  • On August 2, 1997, area code 650 was created; the partition approximately followed the boundary between San Francisco, which (along with Marin County) kept 415, and San Mateo County to the south, which received the new code. Deviations from the county line were a very small area east of the San Francisco Golf Club, which was changed to 650,[6] and portions of Brisbane and Daly City, which retained area code 415.[7]

A further update is planned on 21 February 2015, adding area code 628 as an overlay for newly assigned phone numbers. [8]

Communities in the 415 area code[edit]

City & County of San Francisco[edit]

Marin County[edit]

San Mateo County[edit]

See also[edit]

References[edit]

  1. ^ Madison, Linc (1999-05-27). "LincMad's 1947 Area Code Map". Archived from the original on 4 January 2007. Retrieved 2007-01-06. 
  2. ^ Moore, Carl (1996-02-12). "history.of.area.splits". TELECOM digest. Retrieved 2007-01-06. 
  3. ^ Cuccia, Mark (1996-08-13). "Re: When Was Direct Distance Dialing Cut In?". TELECOM digest. Retrieved 2007-01-06. 
  4. ^ Madison, Linc. "NANP Area Code History: 1948 - 1959". Retrieved 2007-01-06. 
  5. ^ Fabisch, M.P. (1990-06-13). "NANPA Revised Date for Split of 415 (California) Numbering Plan Area". Bellcore Letter. Retrieved 2007-01-06. 
  6. ^ "AT&T- News Room". Att.com. 1998-01-28. Retrieved 2012-09-07. 
  7. ^ Deak, J.N. (1996-11-22). "NANPA Revised Date for Split of 415 (California) Numbering Plan Area". North American Numbering Plan Letter. PL-NANP-022. Retrieved 2007-01-06. 
  8. ^ "Move over 415, San Francisco Gets a New Area Code" on San Francisco Chronicle web site 415 had been one of the few urban area codes without an overlay, making San Francisco one of the largest cities where seven-digit dialing still functioned.

External links[edit]

California area codes: 209, 213, 310/424, 323, 408/669, 415, 442/760, 510, 530, 559, 562, 619, 626, 650, 657/714, 661, 707, 747/818, 805, 831, 858, 909, 916, 925, 949, 951
North: 707
West: Pacific Ocean, 808 area code 415 East: 510, 925
South: 650
Hawaii area codes: 808

Coordinates: 38°00′N 122°36′W / 38°N 122.6°W / 38; -122.6