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510 Area Code 🌍☎️

Area Code Profile · California

The 510 area code is located in the state of California and covers 33 cities, serving a total population of approximately 1,552,395. Major cities covered by the 510 area code include Oakland, Fremont, Hayward, Berkeley, Richmond (which represents the most populated areas). There are a total of 781 telephone prefix exchanges in this area code, which support an estimated 7,810,000 active or assignable phone numbers. These prefix lines are operated by 32 distinct carriers, with Oakland as the primary rate center location.

Pacific Time33 Cities781 Prefixes

Reverse Phone Lookup in Oakland, California

Unmask unknown callers, verify telemarketing reports, and view detailed owner information for any phone number beginning with area code (510).

How it works

1

Enter Number

Provide any 10-digit phone number starting with the (510) area code.

2

Database Search

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

3

Reveal Report

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

Neighborhood Demographics

Calculated demographics and census summary estimations for area code 510.

38.9 y/oMedian Age
$94,400Median Income
$429,000Median Home Value
1,552,395Total Population

Telemarketer Complaints

Most recent complaints and comments for phone numbers beginning with 510.

Did you receive an unwanted call from a (510) phone number?

Help the community identify spammers by filing a comment.

(510) 600-8505May 20, 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
(510) 613-8522May 19, 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
(510) 626-8539May 18, 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 510 Area Code

The most populous cities in area code 510 are: Oakland (390,724), Fremont (214,089), Hayward (144,186), Berkeley (112,580), and Richmond (103,701).

Other cities in the 510 area code include:

San Leandro, Alameda, Union City, Castro Valley, Newark, San Pablo, Hercules, El Cerrito, San Lorenzo, Ashland, Albany, Pinole, Cherryland, El Sobrante, Piedmont, Emeryville, Fairview, Rodeo, Tara Hills, Kensington, North Richmond, East Richmond Heights, Crockett, Rollingwood, Montalvin Manor.

CityPopulation% in Area Code
Oakland390,724100%
Fremont214,08999%
Hayward144,18697%
Berkeley112,580100%
Richmond103,701100%
San Leandro84,950100%
Alameda73,812100%
Union City69,516100%
Castro Valley61,388100%
Newark42,573100%
San Pablo29,139100%
Hercules24,060100%
El Cerrito23,549100%
San Lorenzo23,452100%
Ashland21,925100%
Albany18,539100%
Pinole18,390100%
Cherryland14,728100%
El Sobrante12,669100%
Piedmont10,667100%

Showing top 20 of 33 cities.

What Time Zone is Area Code 510?

Pacific Time Zone

Abbreviation: PT · UTC Offset: UTC-8

The 510 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 510 Area Code

781 prefixes found · 32 carriers · 13 rate centers

PrefixCarrierRate Center
(510) 200METROPCS, INC.HAYWARD
(510) 201PEERLESS NETWORK OF CALIFORNIA, LLC - CAOKLD MN-PD
(510) 202UTILITY TELECOM GROUP, LLC - CAOKLD MN-PD
(510) 203T-MOBILE USA, INC.FRNK MAIN
(510) 204PACIFIC BELLOKLD BKLY
(510) 205METROPCS, INC.OKLD ALMD
(510) 206NEW CINGULAR WIRELESS PCS, LLCOKLD MN-PD
(510) 207NEW CINGULAR WIRELESS PCS, LLCOKLD MN-PD
(510) 208PACIFIC BELLOKLD MN-PD
(510) 209METROPCS, INC.HAYWARD
(510) 210BANDWIDTH.COM CLEC, LLC - CARICHMOND
(510) 212USA MOBILITY WIRELESS, INC.FRNK OLIVR
(510) 213T-MOBILE USA, INC.OKLD FRTVL
(510) 214MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CAOKLD ALMD
(510) 215PACIFIC BELLRICHMOND
(510) 216T-MOBILE USA, INC.OKLD FRTVL
(510) 217TELEPORT COMMUNICATIONS AMERICA, LLC - CAOKLD ALMD
(510) 218USA MOBILITY WIRELESS, INC.FRNK OLIVR
(510) 219NEW CINGULAR WIRELESS PCS, LLCOKLD MN-PD
(510) 220NEW CINGULAR WIRELESS PCS, LLCOKLD MN-PD
(510) 221METROPCS, INC.RICHMOND
(510) 222PACIFIC BELLELSBR-PINL
(510) 223PACIFIC BELLELSBR-PINL
(510) 224T-MOBILE USA, INC.HRCUL-RODE
(510) 225MCIMETRO ACCESS TRANSMISSION SERVICES LLCOKLD BKLY
(510) 226PACIFIC BELLFRNK OLIVR
(510) 227LEVEL 3 TELECOM OF CALIFORNIA, LP - CAOKLD ALMD
(510) 228LEVEL 3 COMMUNICATIONS, LLC - CAOKLD FRTVL
(510) 229PACIFIC BELLOKLD BKLY
(510) 230T-MOBILE USA, INC.RICHMOND
(510) 231PACIFIC BELLRICHMOND
(510) 232PACIFIC BELLRICHMOND
(510) 233PACIFIC BELLRICHMOND
(510) 234PACIFIC BELLRICHMOND
(510) 235PACIFIC BELLRICHMOND
(510) 236PACIFIC BELLRICHMOND
(510) 237PACIFIC BELLRICHMOND
(510) 238PACIFIC BELLOKLD MN-PD
(510) 239U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONSOKLD ALMD
(510) 240LEVEL 3 TELECOM OF CALIFORNIA, LP - CAFRNK GRNLF
(510) 241T-MOBILE USA, INC.ELSBR-PINL
(510) 242PACIFIC BELLRICHMOND
(510) 243PACIFIC BELLELSBR-PINL
(510) 244BANDWIDTH.COM CLEC, LLC - CAHAYWARD
(510) 245PACIFIC BELLHRCUL-RODE
(510) 246CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CAHAYWARD
(510) 247PACIFIC BELLHAYWARD
(510) 248LEVEL 3 COMMUNICATIONS, LLC - CAFRNK MAIN
(510) 249PACIFIC BELLFRNK OLIVR
(510) 250LEVEL 3 COMMUNICATIONS, LLC - CAOKLD MN-PD
(510) 251PACIFIC BELLOKLD MN-PD
(510) 252PACIFIC BELLFRNK OLIVR
(510) 253LEVEL 3 TELECOM OF CALIFORNIA, LP - CARICHMOND
(510) 254LEVEL 3 COMMUNICATIONS, LLC - CAOKLD ALMD
(510) 255BANDWIDTH.COM CLEC, LLC - CARICHMOND
(510) 256BANDWIDTH.COM CLEC, LLC - CACROCKETT
(510) 257TELEPORT COMMUNICATIONS AMERICA, LLC - CAFRNK OLIVR
(510) 258PACIFIC BELLHAYWARD
(510) 259PACIFIC BELLHAYWARD
(510) 260COMCAST IP PHONE, LLCRICHMOND
(510) 261PACIFIC BELLOKLD FRTVL
(510) 262PACIFIC BELLELSBR-PINL
(510) 263PACIFIC BELLOKLD ALMD
(510) 264PACIFIC BELLHAYWARD
(510) 265PACIFIC BELLHAYWARD
(510) 266PACIFIC BELLHAYWARD
(510) 267PACIFIC BELLOKLD MN-PD
(510) 268PACIFIC BELLOKLD MN-PD
(510) 269MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CAOKLD FRTVL
(510) 270MCIMETRO ACCESS TRANSMISSION SERVICES LLCFRNK OLIVR
(510) 271PACIFIC BELLOKLD MN-PD
(510) 272PACIFIC BELLOKLD MN-PD
(510) 273PACIFIC BELLOKLD MN-PD
(510) 274UTILITY TELECOM GROUP, LLC - CAHAYWARD
(510) 275ONVOY, LLC - CAELSBR-PINL
(510) 276PACIFIC BELLHAYWARD
(510) 277GLOBAL CROSSING LOCAL SERVICES, INC. - CAOKLD BKLY
(510) 278PACIFIC BELLHAYWARD
(510) 279LEVEL 3 COMMUNICATIONS, LLC - CAFRNK OLIVR
(510) 280MCIMETRO ACCESS TRANSMISSION SERVICES LLCOKLD BKLY
(510) 281ONVOY, LLC - CAOKLD MN-PD
(510) 282T-MOBILE USA, INC.OKLD MN-PD
(510) 283MCIMETRO ACCESS TRANSMISSION SERVICES LLCELSBR-PINL
(510) 284PACIFIC BELLFRNK MAIN
(510) 285MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CAOKLD MN-PD
(510) 286PACIFIC BELLOKLD MN-PD
(510) 287PACIFIC BELLOKLD MN-PD
(510) 288ONVOY, LLC - CAOKLD MN-PD
(510) 289NEW CINGULAR WIRELESS PCS, LLCOKLD MN-PD
(510) 290T-MOBILE USA, INC.OKLD MN-PD
(510) 291ONVOY, LLC - CAOKLD MN-PD
(510) 292PACIFIC BELLOKLD BKLY
(510) 293PACIFIC BELLHAYWARD
(510) 294METROPCS, INC.HAYWARD
(510) 295CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CAOKLD BKLY
(510) 296LEVEL 3 COMMUNICATIONS, LLC - CAHRCUL-RODE
(510) 297PACIFIC BELLOKLD TRNID
(510) 298NEW CINGULAR WIRELESS PCS, LLCFRNK MAIN
(510) 299CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CAFRNK MAIN
(510) 300U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONSHAYWARD

Showing first 100 of 781 prefixes.

Frequently Asked Questions

Where is area code 510?
Area code 510 is located in California, covering cities including Oakland, Fremont, Hayward.
What time zone is area code 510?
Area code 510 is in the Pacific Time Zone (PT, UTC-8).
What state is area code 510?
Area code 510 is in California.