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628 Area Code

Major City:San Francisco
Current Time:

History of area code 628

628 was first put in service March 21, 2015. It was created from area code 415.

Where is area code 628

Area code 628 serves most of San Francisco, CA and the surrounding areas. It is an overlay for area code 415 and serves the same area.

What time zone is area code 628?

The 628 area code is located in the Pacific timezone. The Pacific time zone is also known as America/Los_Angeles

area code 628

628 area code map

Top 2 Counties in Area Code 628

CountyTotal Population% of 628% of County
San Francisco, CA805,23517%59%
Marin, CA252,40981%80%

Top 32 Cities in Area Code 628

CityTotal Population% of 628% of City
San Francisco, CA805,23517%59%
San Rafael, CA57,7133%100%
Novato, CA51,9043%99%
Daly City, CA101,1230%16%
Mill Valley, CA13,9031%100%
San Anselmo, CA12,3360%100%
Larkspur, CA11,9260%100%
Tamalpais-Homestead Valley, CA10,7351%100%
Corte Madera, CA9,2531%100%
Tiburon, CA8,9622%100%
Fairfax, CA7,4410%100%
Sausalito, CA7,0610%100%
Kentfield, CA6,4850%100%
Lucas Valley-Marinwood, CA6,0941%100%
Strawberry, CA5,3930%100%
Santa Venetia, CA4,2920%100%
Marin City, CA2,6660%100%
Brisbane, CA4,2821%58%
Ross, CA2,4150%100%
Sleepy Hollow, CA2,3840%100%
Belvedere, CA2,0680%100%
Lagunitas-Forest Knolls, CA1,8191%100%
Bolinas, CA1,6201%100%
Woodacre, CA1,3480%100%
Black Point-Green Point, CA1,3060%100%
Inverness, CA1,3041%100%
Alto, CA7110%100%
Stinson Beach, CA6320%100%
Point Reyes Station, CA8480%60%
San Geronimo, CA4460%100%
Muir Beach, CA3100%100%
Nicasio, CA960%100%

Largest Landline Carriers in area code628


Largest Wireless Carriers in area code628


Prefixes in area code628

PrefixUsagePrimary CityCarrierIntroduced