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510 Area Code Prefixes Directory

Choose a prefix to view phone numbers and related information

Metro PCS
Carrier

Coverage Area
Counties: , Contra Costa, Alameda
Cities: Hayward, Oakland, Richmond, Fremont

Peerless Network Of California
Carrier

Coverage Area
Counties: , Alameda
Cities: Oakland, Fremont

American Messaging (am)
Carrier

Coverage Area
Cities: Oakland, Hayward

Pacific Bell
Carrier

Coverage Area
Counties: , Contra Costa, Alameda
Cities: Berkeley, Oakland, Richmond, El Sobrante, Fremont, Hercules, Hayward, Alameda, Albany, San Leandro, Union City, Crockett

Bandwidth.com Clec
Carrier

Coverage Area
Counties: San Francisco, , Contra Costa, Alameda
Cities: San Francisco, Hayward, Richmond, Fremont

Mci Worldcom Communications, Ca
Carrier

Coverage Area
Counties: San Francisco, Alameda,
Cities: San Francisco, Fremont, Hayward

Teleport Communications Group - San Francisco
Carrier

Coverage Area
Counties: San Francisco, Alameda, , Contra Costa
Cities: San Francisco, Fremont, Hercules, Oakland, Union City, Richmond, Hayward

Allegiance Telecom
Carrier

Coverage Area
Counties: San Francisco, , Alameda
Cities: San Francisco, El Sobrante, Fremont, Oakland, Hayward

Tw Telecom Of California Lp
Carrier

Coverage Area
Counties: , Contra Costa, Alameda
Cities: Oakland, Richmond, Walnut Creek, Fremont

T-mobile Usa
Carrier

Coverage Area
Counties: Contra Costa, , San Francisco, Alameda
Cities: Richmond, Oakland, Hayward, Berkeley, San Francisco, Fremont, El Sobrante

Mpower Communications Corp
Carrier

Coverage Area
Counties: , Alameda
Cities: Oakland, Hayward, Union City, Fremont

Broadwing Communications
Carrier

Coverage Area
Counties: , San Francisco
Cities: Oakland, Hayward, Hercules, San Francisco, El Sobrante, Union City

Level 3 Communications
Carrier

Coverage Area
Counties: San Francisco, , Alameda, Contra Costa
Cities: San Francisco, Hercules, Fremont, Oakland, Richmond, Hayward

O1 Communications
Carrier

Coverage Area
Counties: , Alameda
Cities: Walnut Creek, Fremont, Alameda, Hayward

Brooks Fiber Communications Of California
Carrier

Coverage Area
Cities: Sunnyvale

Global Crossing Local Services-ca
Carrier

Coverage Area
Counties: , Alameda
Cities: Oakland, Fremont, Union City

Xo California
Carrier

Coverage Area
Counties: , Contra Costa, Alameda
Cities: Berkeley, Richmond, Fremont, Oakland, Hayward, Hercules

U.s. Telepacific Corp.
Carrier

Coverage Area
Counties: , Santa Clara
Cities: Hayward, San Jose, Oakland, Berkeley

Mcimetro Access Transmission Services LLC
Carrier

Coverage Area
Counties: , San Francisco, Alameda
Cities: Hercules, Union City, San Francisco, Fremont, Hayward, El Sobrante

Cf Communications DBA Telekenex
Carrier

Coverage Area
Counties: Alameda, , San Francisco
Cities: Fremont, Hayward, San Francisco

33 Wireless Inc.
Carrier

Coverage Area
Cities: Oakland, Hayward

Mpower Networks Services Inc.
Carrier

Coverage Area
Counties: Alameda
Cities: Fremont

North County Communications Corp.
Carrier

Coverage Area
Cities: Berkeley

Paetec Communications
Carrier

Coverage Area
Cities: Oakland

American Messaging Services
Carrier

Coverage Area
Cities: Berkeley, Hayward, Oakland

Centurylink Communications LLC
Carrier

Coverage Area
Counties: Contra Costa
Cities: Richmond

Sbc Internet Services
Carrier

Coverage Area
Cities: San Leandro, Hayward

The Telephone Connection Local Services
Carrier

Coverage Area
Cities: Oakland

The 510 area code is located in San Jose, California including Hayward, Oakland and was originally put into service on January 14th 2000. Find whose number this is.

Recently Reported Numbers

(510) 594-5301Dangerous

Red Cross

(510) 519-2351Dangerous

It is the same nan with a Philippine accent

(510) 324-9442Dangerous

Cable scam

(510) 666-1313Unknown

Looks like it is time to get the administrator to clean this spam ad garbage thread out.

(510) 666-1313Unknown

That looks like a scammer's pre-damage control if I ever saw one! The ONLY thing I found in any search results was more of the exact same spammed posts by this weirdo. Nobody gives out a number you can't reach them on, thats why they spoof them...not put them in a listing for their business.

(510) 800-5713Unknown

they never leave a message.

(510) 399-7775Dangerous

Reportedly a confirmation form the San Jose Mercury News verifying that you ordered a home subscription of their newspaper.

(510) 298-1664Unknown

Hung up on my answering machine.

(510) 369-5977Unknown

Repeated calls from this number.

(510) 890-4752Unknown

Just got a call from this number on my cell phone

Recently Unidentified numbers

510 area code numbers that might be spam, scams or that people have reported as unidentified callers

510-213-1350T-mobile Usa
510-568-3975Pacific Bell
510-646-8735Bandwidth.com Clec
510-309-1617UNKNOWN
510-329-4235New Cingular Wireless PCS
510-422-5300UNKNOWN
510-248-4640Pac - West Telecomm
510-306-5842Sprint Spectrum L.p.
510-666-3098Pacific Bell
510-247-1951Pacific Bell
510-919-4744Cellco Partnership DBA Verizon Wireless
510-966-7350American Messaging Services
510-673-4940Cellco Partnership DBA Verizon Wireless
510-404-3704Mci Worldcom Communications, Ca
510-240-4123Tw Telecom Of California Lp
510-963-8549UNKNOWN
510-353-2866Pacific Bell
510-514-6218UNKNOWN
510-286-1393Pacific Bell

Most searched numbers

Cell
All TimeThis Month
510-150-6316First seen 2017-01-10510-299-3781First seen 2019-02-11
510-131-2718First seen 2016-01-07510-133-4677First seen 2010-05-10
510-118-3197First seen 2014-02-20510-180-6695First seen 2017-05-18
510-942-8573First seen 2016-10-04510-612-7796First seen 2011-11-01
510-652-7379First seen 2013-04-29510-926-2680First seen 2011-05-08
Landline
All TimeThis Month
510-475-1552First seen 2018-03-20510-621-6124First seen 2010-03-25
510-647-5866First seen 2019-08-09510-266-6667First seen 2016-03-29
510-935-3423First seen 2015-08-03510-597-2533First seen 2014-11-10
510-627-1001First seen 2016-06-05510-534-7432First seen 2013-05-25
510-556-7067First seen 2012-07-01510-102-6142First seen 2016-07-13

Cities With coverage

CITY LIST
Alameda
Albany
Berkeley
Crockett
El Sobrante
Fremont
Hayward
Hercules
Oakland
Richmond
San Francisco
San Jose
San Leandro
Sunnyvale
Union City
Walnut Creek