Area code 415 Information & Area code 415 Links at HealthHaven.com

Map of California area codes in blue (and border states) with 415 in red

Area code 415 is the telephone area code for San Francisco, as well as portions of neighboring Brisbane and Daly City; and Marin County (across the Golden Gate Bridge to the north), in the state of California, USA.

[edit] History

Area code 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.^[1]

In 1950 there was a boundary realignment in which area code 916 was reduced to the north-eastern corner of the state and area code 415 was extended north to the Oregon border.^[2]

For a short time in the early 1950s, area code 318 was temporarily used 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]

On March 1, 1959, there was a 3-way geographical split of area code 415 which created two new area codes: 707 for the North Bay (excluding Marin County) and 408 for the South Bay.^[4]

On September 2, 1991, area code 415 was split to create a new area code: 510 for Oakland and the East Bay.^[5]

On August 2, 1997, area code 415 was split to create a new area code: 650. San Francisco (excluding a very small area east of the San Francisco Golf Club which was changed to 650),^[6] Marin County as well as portions of Brisbane and Daly City retained area code 415, while the remainder of the region to the south was assigned area code 650.^[7]

Since area code 415 is restricted to such a small geographic area, it is arguably the most exclusive and prestigious area code in the United States.

[edit] Communities in the 415 area code

[edit] City & County of San Francisco

San Francisco

[edit] Marin County

[edit] San Mateo County

[edit] References

Madison, Link (1999-05-27). "LincMad's 1947 Area Code Map". http://www.lincmad.com/map1947.html. Retrieved 2007-01-06.
Moore, Carl (1996-02-12). "history.of.area.splits". TELECOM digest. http://massis.lcs.mit.edu/archives/areacodes/history.area.splits.2-96. Retrieved 2007-01-06.
Cuccia, Mark (1996-08-13). "Re: When Was Direct Distance Dialing Cut In?". TELECOM digest. http://www.textfiles.com/digest/TELECOMDIGEST/vol16.iss0401-0450.txt. Retrieved 2007-01-06.
Madison, Link. "NANP Area Code History: 1948 - 1959". http://www.areacode-info.com/!history/1940s50s.htm. Retrieved 2007-01-06.
Fabisch, M.P. (1990-06-13). "NANPA Revised Date for Split of 415 (California) Numbering Plan Area". Bellcore Letter. http://www.nanpa.com/pdf/old_pl/IL%2090-06-023.pdf. Retrieved 2007-01-06.
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. http://www.nanpa.com/pdf_previous/08_02_99/pl_nanp_022.pdf. Retrieved 2007-01-06.

[edit] See also

[edit] External links

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

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

[0] LincMad's 1947 Area Code Map

[1] ttp://massis.lcs.mit.edu/archives/areacodes/history.area.splits.2-96

[2] ttp://www.textfiles.com/digest/TELECOMDIGEST/vol16.iss0401-0450.txt

[3] ttp://www.areacode-info.com/!history/1940s50s.htm

[4] ttp://www.nanpa.com/pdf/old_pl/IL%2090-06-023.pdf

[5] ttp://www.att.com/gen/press-room?pid=4800&cdvn=news&newsarticleid=4002

[6] ttp://www.nanpa.com/pdf_previous/08_02_99/pl_nanp_022.pdf

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