Telephone Area 858. Page 1.
Prefix: +1858
This prefix is distributed within the state California
The largest city in the region is San Diego
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 +1-858-...-.... California San Diego.
Phone numbers +1-858-YYY-YYYY
| Company | District | Major City | Prefix |
|---|---|---|---|
| Mpower Communications Corp | San Diego | Del Mar, CA | +1-858356-SSSS |
| Tw Telecom Of California Lp | San Diego | San Diego, CA | +1-858357-SSSS |
| Cook Telecom | San Diego | San Diego, CA | +1-858359-SSSS |
| Pacific Bell | San Diego | San Diego, CA | +1-858360-SSSS |
| New Cingular Wireless PCS | San Diego | La Jolla, CA | +1-858361-SSSS |
| Xo California | San Diego | La Jolla, CA | +1-858362-SSSS |
| North County Communications Corp. | San Diego | San Diego, CA | +1-858364-SSSS |
| O1 Communications | San Diego | San Diego, CA | +1-858365-SSSS |
| Allegiance Telecom | San Diego | San Diego, CA | +1-858366-SSSS |
| O1 Communications | San Diego | Rancho Santa Fe, CA | +1-858367-SSSS |
| O1 Communications | San Diego | San Diego, CA | +1-858368-SSSS |
| AT&T Local | San Diego | Del Mar, CA | +1-858369-SSSS |
| Cox California Telcom | San Diego | San Diego, CA | +1-858371-SSSS |
| Allegiance Telecom | San Diego | La Jolla, CA | +1-858373-SSSS |
| Mpower Communications Corp | San Diego | San Diego, CA | +1-858375-SSSS |
| Mpower Communications Corp | San Diego | Rancho Bernardo, CA | +1-858376-SSSS |
| Tw Telecom Of California Lp | San Diego | San Diego, CA | +1-858380-SSSS |
| Teleport Communications Group - San Diego | San Diego | San Diego, CA | +1-858381-SSSS |
| New Cingular Wireless PCS | San Diego | Poway, CA | +1-858382-SSSS |
| Global Crossing Local Services-ca | San Diego | San Diego, CA | +1-858384-SSSS |
| Pacific Bell | San Diego | Rancho Bernardo, CA | +1-858385-SSSS |
| Tw Telecom Of California Lp | San Diego | San Diego, CA | +1-858386-SSSS |
| Pacific Bell | San Diego | Poway, CA | +1-858391-SSSS |
| Cellco Partnership DBA Verizon Wireless | San Diego | San Diego, CA | +1-858395-SSSS |
| Cox California Telcom | San Diego | San Diego, CA | +1-858397-SSSS |
| U.s. Telepacific Corp. | San Diego | San Diego, CA | +1-858400-SSSS |
| Teleport Communications Group - San Diego | San Diego | La Jolla, CA | +1-858401-SSSS |
| Pacific Bell | San Diego | La Jolla, CA | +1-858404-SSSS |
| T-mobile Usa | San Diego | La Jolla, CA | +1-858405-SSSS |
| Allegiance Telecom | San Diego | San Diego, CA | +1-858408-SSSS |
| Mci Worldcom Communications, Ca | San Diego | San Diego, CA | +1-858410-SSSS |
| Sprint Communications Company, L.p. | La Jolla, CA | +1-858412-SSSS | |
| Mpower Communications Corp | San Diego | Poway, CA | +1-858413-SSSS |
| Cellco Partnership DBA Verizon Wireless | San Diego | San Diego, CA | +1-858414-SSSS |
| Paetec Communications | San Diego | San Diego, CA | +1-858427-SSSS |
| Pac - West Telecomm | San Diego | San Diego, CA | +1-858428-SSSS |
| O1 Communications | San Diego | San Diego, CA | +1-858429-SSSS |
| Allegiance Telecom | San Diego | San Diego, CA | +1-858430-SSSS |
| AT&T Local | San Diego | San Diego, CA | +1-858431-SSSS |
| Mpower Communications Corp | San Diego | San Diego, CA | +1-858432-SSSS |
| Paetec Communications | San Diego | San Diego, CA | +1-858433-SSSS |
| Allegiance Telecom | San Diego | San Diego, CA | +1-858434-SSSS |
| Paetec Communications | San Diego | Poway, CA | +1-858435-SSSS |
| U.s. Telepacific Corp. | San Diego | San Diego, CA | +1-858436-SSSS |
| Pacific Bell | San Diego | San Diego, CA | +1-858437-SSSS |
| American Messaging Services | San Diego | San Diego, CA | +1-858440-SSSS |
| Cellco Partnership DBA Verizon Wireless | San Diego | San Diego, CA | +1-858442-SSSS |
| U.s. Telepacific Corp. | San Diego | San Diego, CA | +1-858444-SSSS |
| Cellco Partnership DBA Verizon Wireless | San Diego | San Diego, CA | +1-858449-SSSS |
| Pacific Bell | San Diego | La Jolla, CA | +1-858450-SSSS |
| Pacific Bell | San Diego | Rancho Bernardo, CA | +1-858451-SSSS |
| Pacific Bell | San Diego | La Jolla, CA | +1-858452-SSSS |
| Pacific Bell | San Diego | La Jolla, CA | +1-858453-SSSS |
| Pacific Bell | San Diego | La Jolla, CA | +1-858454-SSSS |
| Pacific Bell | San Diego | La Jolla, CA | +1-858455-SSSS |
| Pacific Bell | San Diego | La Jolla, CA | +1-858456-SSSS |
| Pacific Bell | San Diego | La Jolla, CA | +1-858457-SSSS |
| Pacific Bell | San Diego | La Jolla, CA | +1-858458-SSSS |
| Pacific Bell | San Diego | La Jolla, CA | +1-858459-SSSS |
| Level 3 Communications | San Diego | Del Mar, CA | +1-858461-SSSS |
| Pacific Bell | San Diego | San Diego, CA | +1-858467-SSSS |
| Cellco Partnership DBA Verizon Wireless | San Diego | Rancho Bernardo, CA | +1-858472-SSSS |
| Tw Telecom Of California Lp | San Diego | San Diego, CA | +1-858480-SSSS |
| Pacific Bell | San Diego | Del Mar, CA | +1-858481-SSSS |
| Pacific Bell | San Diego | La Jolla, CA | +1-858483-SSSS |
| Pacific Bell | San Diego | San Diego, CA | +1-858484-SSSS |
| Pacific Bell | San Diego | Rancho Bernardo, CA | +1-858485-SSSS |
| Pacific Bell | San Diego | Poway, CA | +1-858486-SSSS |
| Pacific Bell | San Diego | Rancho Bernardo, CA | +1-858487-SSSS |
| Pacific Bell | San Diego | La Jolla, CA | +1-858488-SSSS |
| Pacific Bell | San Diego | La Jolla, CA | +1-858490-SSSS |
| Pacific Bell | San Diego | San Diego, CA | +1-858492-SSSS |
| American Messaging (am) | San Diego | San Diego, CA | +1-858493-SSSS |
| American Messaging (am) | San Diego | San Diego, CA | +1-858494-SSSS |
| Pacific Bell | San Diego | San Diego, CA | +1-858495-SSSS |
| Pacific Bell | San Diego | San Diego, CA | +1-858496-SSSS |
| Pacific Bell | San Diego | San Diego, CA | +1-858499-SSSS |
| Pacific Bell | San Diego | San Diego, CA | +1-858502-SSSS |
| Pacific Bell | San Diego | San Diego, CA | +1-858503-SSSS |
| T-mobile Usa | San Diego | Rancho Santa Fe, CA | +1-858504-SSSS |
