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 |
---|---|---|---|
510-391 | Alameda | Oakland, CA | American Messaging (am) |
510-392 | Alameda | Oakland, CA | American Messaging (am) |
510-393 | San Francisco | San Francisco, CA | Sprint Spectrum L.p. |
510-394 | Alameda | Oakland, CA | Teleport Communications Group - San Francisco |
510-395 | Alameda | Oakland, CA | Teleport Communications Group - San Francisco |
510-396 | Alameda | Fremont, CA | T-mobile Usa |
510-397 | Alameda | Hayward, CA | Comcast Phone Of California |
510-398 | Alameda | Hayward, CA | Bandwidth.com Clec |
510-400 | Alameda | Fremont, CA | Xo California |
510-401 | Alameda | Union City, CA | Mpower Communications Corp |
510-402 | Alameda | Fremont, CA | Mpower Communications Corp |
510-403 | Alameda | Fremont, CA | Mpower Networks Services Inc. |
510-404 | Alameda | Union City, CA | Mci Worldcom Communications, Ca |
510-405 | Alameda | Fremont, CA | Pac - West Telecomm |
510-406 | Alameda | Oakland, CA | Cellco Partnership DBA Verizon Wireless |
510-407 | Alameda | Oakland, CA | Cellco Partnership DBA Verizon Wireless |
510-408 | Contra Costa | El Sobrante, CA | Pacific Bell |
510-409 | Alameda | Oakland, CA | New Cingular Wireless PCS |
510-410 | Alameda | Oakland, CA | Cellco Partnership DBA Verizon Wireless |
510-412 | Contra Costa | Richmond, 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.