The 628 area code belongs to the state of California (CA) and some of the locations covered are Novato, San Francisco and more:
|State||Larger cities in area code 628||Time Zone|
|Larkspur, Mill Valley, Novato, San Anselmo, San Francisco, San Rafael
Current time is
|-- overlays area code 415 --|
Approved in December 2013, the new 628 area code serves 3 California counties: San Francisco, Marin and a portion of San Mateo County, overlaying area code 415. Both area codes serve the same geographic area and to dial either local or toll calls within this NPA one has to enter 1 + 10 digits.
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