Area code 415

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.

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.

Communities in the 415 area code

City & County of San Francisco

• San Francisco

Marin County

• Bel Marin Keys
• Belvedere
• Black Point-Green Point
• Bolinas
• California Park
• Corte Madera
• Dogtown
• Fairfax
• Greenbrae
• Inverness Park
• Inverness
• Kentfield
• Lagunitas-Forest Knolls
• Larkspur
• Lucas Valley-Marinwood
• Manor
• Manzanita
• Marconi
• Marin City
• Marshall
• McNears Beach
• Meadowsweet
• Mill Valley
• Millerton
• Muir Beach
• Nicasio
• Novato
• Olema
• Paradise Cay
• Point Reyes Station
• Ross
• San Anselmo
• San Geronimo
• San Quentin
• San Rafael
• Santa Venetia
• Sausalito
• Sleepy Hollow
• Stinson Beach
• Strawberry
• Tamalpais-Homestead Valley
• Tiburon
• Woodacre

San Mateo County

• Brisbane
• Daly City

References

See also

• List of California area codes
• List of NANP area codes
• North American Numbering Plan

External links

• NANPA Area Code Map of California
• List of exchanges from AreaCodeDownload.com, 415 Area Code

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