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628 Area Code 🌍☎️

Area Code Profile · California

The 628 area code is located in the state of California and covers 32 cities, serving a total population of approximately 1,144,111. Major cities covered by the 628 area code include San Francisco, Daly City, San Rafael, Novato, Mill Valley (which represents the most populated areas). There are a total of 174 telephone prefix exchanges in this area code, which support an estimated 1,740,000 active or assignable phone numbers. These prefix lines are operated by 34 distinct carriers, with San Francisco as the primary rate center location.

Pacific Time32 Cities174 Prefixes

Reverse Phone Lookup in San Francisco, California

Unmask unknown callers, verify telemarketing reports, and view detailed owner information for any phone number beginning with area code (628).

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1

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Provide any 10-digit phone number starting with the (628) area code.

2

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Our system scans public registries, carrier mappings, and spam reports.

3

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Access location details, line type, carrier, owner information, and safety levels.

Neighborhood Demographics

Calculated demographics and census summary estimations for area code 628.

35.7 y/oMedian Age
$58,200Median Income
$707,000Median Home Value
1,144,111Total Population

Telemarketer Complaints

Most recent complaints and comments for phone numbers beginning with 628.

Did you receive an unwanted call from a (628) phone number?

Help the community identify spammers by filing a comment.

(628) 800-9505May 20, 2026Robocall
Robocall regarding health insurance plans. Said my current coverage was expiring and offered a "free consultation". Calling multiple times a day from slightly different numbers.
See Details
(628) 813-9522May 19, 2026Scam / Fraud
Robocall claiming to be from the IRS. Stated that my Social Security Number has been flagged and suspended. Asked to press 1 to speak with an agent. Obvious phishing scam.
See Details
(628) 826-9539May 18, 2026Robocall
Received a silent call. When I answered, there was just dead air for 5 seconds before it automatically disconnected. Likely an automated system testing for active numbers.
See Details
(628) 839-9556May 17, 2026Telemarketer
Offered an unsolicited quote for local roofing and home energy services. They knew my area code but when I asked how they got my number, they hung up immediately.
See Details

Cities in the 628 Area Code

The most populous cities in area code 628 are: San Francisco (805,235), Daly City (101,123), San Rafael (57,713), Novato (51,904), and Mill Valley (13,903).

Other cities in the 628 area code include:

San Anselmo, Larkspur, Tamalpais-Homestead Valley, Corte Madera, Tiburon, Fairfax, Sausalito, Kentfield, Lucas Valley-Marinwood, Strawberry, Santa Venetia, Brisbane, Marin City, Ross, Sleepy Hollow, Belvedere, Lagunitas-Forest Knolls, Bolinas, Woodacre, Black Point-Green Point, Inverness, Point Reyes Station, Alto, Stinson Beach, San Geronimo.

CityPopulation% in Area Code
San Francisco805,23559%
Daly City101,12316%
San Rafael57,713100%
Novato51,90499%
Mill Valley13,903100%
San Anselmo12,336100%
Larkspur11,926100%
Tamalpais-Homestead Valley10,735100%
Corte Madera9,253100%
Tiburon8,962100%
Fairfax7,441100%
Sausalito7,061100%
Kentfield6,485100%
Lucas Valley-Marinwood6,094100%
Strawberry5,393100%
Santa Venetia4,292100%
Brisbane4,28258%
Marin City2,666100%
Ross2,415100%
Sleepy Hollow2,384100%

Showing top 20 of 32 cities.

What Time Zone is Area Code 628?

Pacific Time Zone

Abbreviation: PT · UTC Offset: UTC-8

The 628 area code lies within the Pacific Time Zone (PT, UTC-8).

Nearby Area Codes

209Stockton, California213Los Angeles, California279Sacramento, California310Los Angeles, California323Los Angeles, California341Oakland, California350Stockton, California369Santa Rosa, California408San Jose, California415San Francisco, California

Phone Prefixes in the 628 Area Code

174 prefixes found · 34 carriers · 14 rate centers

PrefixCarrierRate Center
(628) 200ONVOY, LLC - CASNFC JUNPR
(628) 201ONVOY, LLC - CASNFC CNTRL
(628) 202T-MOBILE USA, INC.BELVEDERE
(628) 203ONVOY, LLC - CASTNSN-BLNS
(628) 204T-MOBILE USA, INC.NICASIO
(628) 205CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CASNFC CNTRL
(628) 206PACIFIC BELLSNFC CNTRL
(628) 207BANDWIDTH.COM CLEC, LLC - CASNFC MT-EV
(628) 208VONAGE AMERICA LLCSNFC CNTRL
(628) 209TELNYX LLCNOVATO
(628) 210PEERLESS NETWORK OF CALIFORNIA, LLC - CAINVERNESS
(628) 212BANDWIDTH.COM CLEC, LLC - CACORTEMADRA
(628) 213T-MOBILE USA, INC.SNFC CNTRL
(628) 214PEERLESS NETWORK OF CALIFORNIA, LLC - CANOVATO
(628) 215BANDWIDTH.COM CLEC, LLC - CAMILLVALLEY
(628) 216BANDWIDTH.COM CLEC, LLC - CAPOINTREYES
(628) 217TELEPORT COMMUNICATIONS AMERICA, LLC - CASNFC CNTRL
(628) 218MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CASNFC CNTRL
(628) 219NEW CINGULAR WIRELESS PCS, LLCSNFC MT-EV
(628) 220LEVEL 3 COMMUNICATIONS, LLC - CASNFC CNTRL
(628) 221CENTURYLINK COMMUNICATIONS, LLCSNFC CNTRL
(628) 222ONVOY, LLC - CASNFC CNTRL
(628) 223TELEPORT COMMUNICATIONS AMERICA, LLC - CASNFC CNTRL
(628) 224NEW CINGULAR WIRELESS PCS, LLCSNFC MT-EV
(628) 225CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CASNFC CNTRL
(628) 226NEW CINGULAR WIRELESS PCS, LLCBELVEDERE
(628) 227BANDWIDTH.COM CLEC, LLC - CASNFC MT-EV
(628) 228PACIFIC BELLSNFC CNTRL
(628) 229ONVOY, LLC - CAPOINTREYES
(628) 230CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CASNFC CNTRL
(628) 231TELEPORT COMMUNICATIONS AMERICA, LLC - CASNFC CNTRL
(628) 232PEERLESS NETWORK OF CALIFORNIA, LLC - CAINVERNESS
(628) 233NEW CINGULAR WIRELESS PCS, LLCSNFC CNTRL
(628) 234U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONSSAN RAFAEL
(628) 235LEVEL 3 COMMUNICATIONS, LLC - CASNFC CNTRL
(628) 236T-MOBILE USA, INC.NOVATO
(628) 237T-MOBILE USA, INC.SAUSALITO
(628) 238PEERLESS NETWORK OF CALIFORNIA, LLC - CAIGNACIO
(628) 239BANDWIDTH.COM CLEC, LLC - CASNFC JUNPR
(628) 240METROPCS, INC.SAN RAFAEL
(628) 241T-MOBILE USA, INC.SNFC JUNPR
(628) 242PACIFIC BELLSNFC CNTRL
(628) 243ONVOY, LLC - CASAN RAFAEL
(628) 244PEERLESS NETWORK OF CALIFORNIA, LLC - CABELVEDERE
(628) 245ONVOY, LLC - CAMILLVALLEY
(628) 246BANDWIDTH.COM CLEC, LLC - CASNFC CNTRL
(628) 247TELEPORT COMMUNICATIONS AMERICA, LLC - CASNFC CNTRL
(628) 248TELEPORT COMMUNICATIONS AMERICA, LLC - CASNFC MT-EV
(628) 249CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CASNFC CNTRL
(628) 250CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CASNFC JUNPR
(628) 251PEERLESS NETWORK OF CALIFORNIA, LLC - CASNFC CNTRL
(628) 252T-MOBILE USA, INC.CORTEMADRA
(628) 253BANDWIDTH.COM CLEC, LLC - CASAN RAFAEL
(628) 254BANDWIDTH.COM CLEC, LLC - CASAUSALITO
(628) 255CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CASNFC CNTRL
(628) 256SONIC TELECOM, LLC - CASNFC MT-EV
(628) 257RACE TELECOMMUNICATIONS, INC. - CAMILLVALLEY
(628) 258T-MOBILE USA, INC.NICASIO
(628) 259NEW CINGULAR WIRELESS PCS, LLCIGNACIO
(628) 260TELEPORT COMMUNICATIONS AMERICA, LLC - CASNFC CNTRL
(628) 261TERRA NOVA TELECOM INC.SAUSALITO
(628) 262EXIANT COMMUNICATIONS LLCBELVEDERE
(628) 263MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CASNFC CNTRL
(628) 264T-MOBILE USA, INC.SNFC CNTRL
(628) 265BANDWIDTH.COM CLEC, LLC - CAINVERNESS
(628) 266BANDWIDTH.COM CLEC, LLC - CACORTEMADRA
(628) 267TELEPORT COMMUNICATIONS AMERICA, LLC - CASNFC CNTRL
(628) 268LEVEL 3 COMMUNICATIONS, LLC - CASNFC CNTRL
(628) 269T-MOBILE USA, INC.SAN RAFAEL
(628) 270SONIC TELECOM, LLC - CASNFC MT-EV
(628) 271ONVOY SPECTRUM, LLCSNFC CNTRL
(628) 272ONVOY, LLC - CAPOINTREYES
(628) 273LEVEL 3 COMMUNICATIONS, LLC - CASNFC CNTRL
(628) 274LEVEL 3 COMMUNICATIONS, LLC - CASNFC CNTRL
(628) 275LEVEL 3 COMMUNICATIONS, LLC - CASNFC CNTRL
(628) 276WHITESKY COMMUNICATIONS, LLCSNFC CNTRL
(628) 277TELNYX LLCSAN RAFAEL
(628) 278NEW CINGULAR WIRELESS PCS, LLCSNFC MT-EV
(628) 279BANDWIDTH.COM CLEC, LLC - CASAUSALITO
(628) 280SONIC TELECOM, LLC - CASNFC MT-EV
(628) 281NUSO, LLCSNFC CNTRL
(628) 282AT&T - LOCALSNFC JUNPR
(628) 283T-MOBILE USA, INC.SNFC MT-EV
(628) 284PAETEC COMMUNICATIONS, INC. - CASNFC CNTRL
(628) 285ONVOY, LLC - CASAN RAFAEL
(628) 286WIDE VOICE, LLC - CASNFC MT-EV
(628) 287FIVE9, INC.SNFC CNTRL
(628) 288FRACTEL, LLCMILLVALLEY
(628) 289FIVE9, INC.SNFC CNTRL
(628) 290T-MOBILE USA, INC.SNFC JUNPR
(628) 291NEW CINGULAR WIRELESS PCS, LLCMILLVALLEY
(628) 292COMMIO, LLCBELVEDERE
(628) 293COMMIO, LLCNICASIO
(628) 294NEW CINGULAR WIRELESS PCS, LLCNOVATO
(628) 295ONVOY, LLC - CASAN RAFAEL
(628) 296ONVOY, LLC - CASNFC MT-EV
(628) 297T-MOBILE USA, INC.SNFC MT-EV
(628) 298T-MOBILE USA, INC.SNFC JUNPR
(628) 299FRACTEL, LLCSNFC JUNPR
(628) 300ONVOY, LLC - CASNFC CNTRL

Showing first 100 of 174 prefixes.

Frequently Asked Questions

Where is area code 628?
Area code 628 is located in California, covering cities including San Francisco, Daly City, San Rafael.
What time zone is area code 628?
Area code 628 is in the Pacific Time Zone (PT, UTC-8).
What state is area code 628?
Area code 628 is in California.