USA Phone Code Guide
USA Phone
Code Guide

Telephone Area +1 (510) XXX-XXXX / Page 8

Phone numbers of the state California
Prefix: +1510
This prefix is distributed within the state California
The largest city in the region is Oakland
Time Zone: Pacific
Winter time: UTC-8
Summer time: UTC-7
Below on the map, there is indicated the largest city in the telephone area +1-510-...-.... California Oakland.

In the United States, telephone numbers are divided into a country code (+1), an area code (or prefix), which is three digits long, and a subscriber number (seven digits). These are just a few examples, and there are over 300 area codes in the United States. Each code can cover both large cities and less populated areas depending on population density and telephone network distribution.



Phone numbers +1 (510) XXX-XXXX

Other pages: 12345678
Company District Major City Prefix
New Cingular Wireless PCSAlamedaOakland, CA+1 (510) 928-XXXX
Usa Mobility WirelessAlamedaOakland, CA+1 (510) 929-XXXX
O1 CommunicationsAlamedaHayward, CA+1 (510) 931-XXXX
Sprint Spectrum L.p.San FranciscoSan Francisco, CA+1 (510) 932-XXXX
U.s. Telepacific Corp.Santa ClaraSan Jose, CA+1 (510) 933-XXXX
Pacific BellAlamedaFremont, CA+1 (510) 936-XXXX
Metro PCSAlamedaFremont, CA+1 (510) 938-XXXX
Mpower Communications CorpAlamedaHayward, CA+1 (510) 940-XXXX
Tw Telecom Of California LpAlamedaFremont, CA+1 (510) 943-XXXX
Xo CaliforniaContra CostaHercules, CA+1 (510) 948-XXXX
Nextel CommunicationsAlamedaUnion City, CA+1 (510) 952-XXXX
Allegiance TelecomSan FranciscoSan Francisco, CA+1 (510) 957-XXXX
Level 3 CommunicationsAlamedaHayward, CA+1 (510) 962-XXXX
Pacific BellContra CostaEl Sobrante, CA+1 (510) 964-XXXX
Pacific BellContra CostaRichmond, CA+1 (510) 965-XXXX
American Messaging ServicesAlamedaUnion City, CA+1 (510) 966-XXXX
Sprint Spectrum L.p.San FranciscoSan Francisco, CA+1 (510) 967-XXXX
Cook TelecomAlamedaFremont, CA+1 (510) 968-XXXX
Tw Telecom Of California LpAlamedaOakland, CA+1 (510) 969-XXXX
Pacific BellContra CostaRichmond, CA+1 (510) 970-XXXX
Comcast Phone Of California AlamedaUnion City, CA+1 (510) 972-XXXX
North County Communications Corp.+1 (510) 976-XXXX
American Messaging ServicesAlamedaFremont, CA+1 (510) 977-XXXX
Level 3 CommunicationsAlamedaOakland, CA+1 (510) 978-XXXX
Pacific BellAlamedaFremont, CA+1 (510) 979-XXXX
Usa Mobility WirelessAlamedaOakland, CA+1 (510) 980-XXXX
Pacific BellAlamedaBerkeley, CA+1 (510) 981-XXXX
Mci Worldcom Communications, CaSan FranciscoSan Francisco, CA+1 (510) 982-XXXX
Level 3 CommunicationsAlamedaOakland, CA+1 (510) 984-XXXX
Pacific BellAlamedaOakland, CA+1 (510) 985-XXXX
Pacific BellAlamedaOakland, CA+1 (510) 986-XXXX
Pacific BellAlamedaOakland, CA+1 (510) 987-XXXX
Pac - West TelecommAlamedaUnion City, CA+1 (510) 991-XXXX
Pac - West TelecommAlamedaOakland, CA+1 (510) 992-XXXX
American Messaging ServicesAlamedaFremont, CA+1 (510) 994-XXXX
U.s. Telepacific Corp.AlamedaOakland, CA+1 (510) 995-XXXX
Global Crossing Local Services-caAlamedaFremont, CA+1 (510) 996-XXXX
American Messaging ServicesAlamedaOakland, CA+1 (510) 997-XXXX
Cf Communications DBA TelekenexAlamedaHayward, CA+1 (510) 999-XXXX