District of California area codes: 510 | |
---|---|
Country | United States |
State/Province | California |
Major City | San Jose |
Time Zone | Pacific (UTC-08:00) |
Prefix | County | Primary City | Company |
---|---|---|---|
510-821 | Alameda | Oakland, CA | Cellco Partnership DBA Verizon Wireless |
510-823 | San Francisco | San Francisco, CA | Sprint Spectrum L.p. |
510-824 | Alameda | Fremont, CA | Allegiance Telecom |
510-825 | Alameda | Hayward, CA | Sprint Spectrum L.p. |
510-827 | San Francisco | San Francisco, CA | Metro PCS |
510-828 | Alameda | Hayward, CA | Cellco Partnership DBA Verizon Wireless |
510-830 | Alameda | Alameda, CA | O1 Communications |
510-832 | Alameda | Oakland, CA | Pacific Bell |
510-834 | Alameda | Oakland, CA | Pacific Bell |
510-835 | Alameda | Oakland, CA | Pacific Bell |
510-836 | Alameda | Oakland, CA | Pacific Bell |
510-837 | Contra Costa | Richmond, CA | Teleport Communications Group - San Francisco |
510-838 | San Francisco | San Francisco, CA | Bandwidth.com Clec |
510-839 | Alameda | Oakland, CA | Pacific Bell |
510-840 | Alameda | Oakland, CA | American Messaging (am) |
510-841 | Alameda | Berkeley, CA | Pacific Bell |
510-842 | San Francisco | San Francisco, CA | Allegiance Telecom |
510-843 | Alameda | Berkeley, CA | Pacific Bell |
510-844 | Alameda | Oakland, CA | Allegiance Telecom |
510-845 | Alameda | Berkeley, CA | Pacific Bell |
There are 689 prefixes, In the code area, the major cities are Alameda, CA;Berkeley, CA;Castro Valley, CA;El Cerr. The major city is San Jose.