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Fixed phone numbers in the United States, state California, San Francisco are comprised of a single country code (+1), a 3 digit area code, a 3 digit local office code (or region code), and a 4 digit line code. Making a call with the wrong country, area, or region code can be costly.
Lookup area code information for SAN FRANCISCO, CA. Get the NPA NXX (area code and prefix) as well as much more data for SAN FRANCISCO, CA.
It has the following active area codes: 415. 510. 628. 650. San Francisco, CA has the following Exchanges (NXX) Find the Area Codes for other nearby cities. Wirefly Is America's Most Trusted Source For All Cell Phones, Plans, TV, and Internet Deals.
To find information on a specific area code, use the area code lookup that makes it easy to find an area code by number and gives detailed information including city/state, timezone, and area code maps.
Find the local area code for San Francisco, California. Our complete calling resource guide instantly gives you the the San Francisco area code and local time to help you make your long distance call to San Francisco, California.
Find everything about the 415 area code of San Francisco's phone number. Learn about its dialing format, coverage, major cities, and ZIP codes.
Area codes 415 and 628 are telephone area codes in the North American Numbering Plan (NANP) for the city of San Francisco and its northern suburbs in Marin County (across the Golden Gate), and the northeast corner of San Mateo County in the U.S. state of California.
