United States, San Mateo Area Codes

Number structure

+1650212
312
341
342
345
349
...
United StatesCaliforniaSan MateoNumber

List of area codes

650-212
650-312
650-341
650-342
650-345
650-349
650-458
650-522
650-525
650-548
650-57
650-638

Local time in San Mateo

TimezoneGMTTime
America/Los_Angeles-08:00
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Map of San Mateo

Other area codes in California

Area Codes Search Notes

Fixed phone numbers in the United States, state California, San Mateo 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. Browse our sites area and region codes by state and city to ensure you have the correct information for your calls. Each states page contains a list of the cities within that state and the numbers of that area. Also available are local times. So you don’t have to worry about calling too late or early again.

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