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  2. Area codes 408 and 669 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_408_and_669

    Until the late 1970s, central office code protection was maintained between area codes 415 and 408, so that Telephone numbers were not duplicated across, and subscribers could dial seven-digit San Francisco or Berkeley numbers without dialing an area code. Population growth, facsimile machines, and pagers caused demands for numbers to outrun ...

  3. List of California area codes - Wikipedia

    en.wikipedia.org/wiki/List_of_California_area_codes

    San Francisco, San Rafael, Novato; all of San Francisco County, most of Marin County and a small portion of northern San Mateo County: October 1947; split numerous times since then; overlaid by 628 effective March 21, 2015 [2] 424: overlay with 310: started service on August 26, 2006. 442: overlay with 760: started service on October 24, 2009. 510

  4. Area codes 415 and 628 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_415_and_628

    Area code 415 has been split three times due to the Bay Area's rapid economic growth and demand for telecommunication services: On March 1, 1959, area code 707 was created from the northern part, and area code 408 was created for San Jose, the South Bay, the Monterey Bay, and the Salinas Valley.

  5. Area code 650 - Wikipedia

    en.wikipedia.org/wiki/Area_code_650

    Area code 650 is a telephone area code in the North American Numbering Plan (NANP) for the San Francisco Bay Area in the U.S. state of California. It was split from area code 415 on August 2, 1997, and includes most of San Mateo County (except the northernmost portion), part of San Francisco , and the northwestern portion of Santa Clara County ...

  6. Transportation in the San Francisco Bay Area - Wikipedia

    en.wikipedia.org/wiki/Transportation_in_the_San...

    Golden Gate Bridge: San Francisco with Marin County: 1.7 mi (2.7 km) US 101, SR 1: Richmond-San Rafael Bridge: Richmond in Contra Costa County with San Rafael in Marin County 5.5 mi (8.9 km) I-580: San Francisco–Oakland Bay Bridge: San Francisco with Oakland and the East Bay: 4.46 mi (7.18 km) I-80: San Mateo-Hayward Bridge

  7. Bay Area Toll Authority - Wikipedia

    en.wikipedia.org/wiki/Bay_Area_Toll_Authority

    The Bay Area Toll Authority (BATA) is a state agency created by the California State Legislature in 1997 to administer the auto tolls on the San Francisco Bay Area's seven state-owned toll bridges. On January 1, 1998, the Metropolitan Transportation Commission (MTC) — the transportation planning , financing and coordinating agency for the ...

  8. Seven-digit dialing - Wikipedia

    en.wikipedia.org/wiki/Seven-digit_dialing

    Central office code protection made it possible in some low-density areas to use seven digits to reach areas in another area code. Examples: Washington, D.C. (area code 202) to adjacent areas of Maryland (area code 301) and Virginia (area code 703), discontinued on October 1, 1990, to allow assignment of a code in all three area codes. Hull ...

  9. Area codes 310 and 424 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_310_and_424

    Having been staved off nearly seven years, the overlay with 424 was finally implemented on July 26, 2006. On December 31, 2005, customers began dialing 1 + area code + seven-digit number whenever a call is placed by a caller in the 310 or 424 area code to any other area code, including 310 to 424 or 424 to 310. After July 26, 2006, customers ...