Telephone Area 858. Page 4.
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 |
|---|---|---|---|
| Vaya Telecom | +1-858800-SSSS | ||
| Tw Telecom Of California Lp | San Diego | San Diego, CA | +1-858805-SSSS |
| Teleport Communications Group - San Diego | San Diego | San Diego, CA | +1-858810-SSSS |
| Teleport Communications Group - San Diego | San Diego | La Jolla, CA | +1-858812-SSSS |
| Pac - West Telecomm | San Diego | Rancho Bernardo, CA | +1-858815-SSSS |
| Pacific Bell | San Diego | La Jolla, CA | +1-858822-SSSS |
| Pacific Bell | San Diego | La Jolla, CA | +1-858824-SSSS |
| Pacific Bell | San Diego | La Jolla, CA | +1-858826-SSSS |
| Sprint Spectrum L.p. | San Diego | San Diego, CA | +1-858829-SSSS |
| Pacific Bell | San Diego | San Diego, CA | +1-858831-SSSS |
| Cox California Telcom | San Diego | Rancho Santa Fe, CA | +1-858832-SSSS |
| Global Crossing Local Services-ca | San Diego | San Diego, CA | +1-858834-SSSS |
| Xo California | San Diego | San Diego, CA | +1-858836-SSSS |
| New Cingular Wireless PCS | San Diego | San Diego, CA | +1-858837-SSSS |
| Cox California Telcom | San Diego | Poway, CA | +1-858842-SSSS |
| Tw Telecom Of California Lp | San Diego | La Jolla, CA | +1-858845-SSSS |
| Pacific Bell | San Diego | Del Mar, CA | +1-858847-SSSS |
| Teleport Communications Group - San Diego | San Diego | Poway, CA | +1-858848-SSSS |
| San Diego | +1-858853-SSSS | ||
| Network Services LLC (tsr) | San Diego | San Diego, CA | +1-858856-SSSS |
| Mci Worldcom Communications, Ca | San Diego | Poway, CA | +1-858859-SSSS |
| Mpower Communications Corp | San Diego | San Diego, CA | +1-858860-SSSS |
| Global Crossing Local Services-ca | San Diego | San Diego, CA | +1-858863-SSSS |
| Nextel Communications | San Diego | San Diego, CA | +1-858864-SSSS |
| Mpower Communications Corp | San Diego | La Jolla, CA | +1-858866-SSSS |
| Mpower Communications Corp | San Diego | San Diego, CA | +1-858869-SSSS |
| Pacific Bell | San Diego | San Diego, CA | +1-858874-SSSS |
| U.s. Telepacific Corp. | San Diego | San Diego, CA | +1-858875-SSSS |
| Global Crossing Local Services-ca | San Diego | Del Mar, CA | +1-858876-SSSS |
| Mci Worldcom Communications, Ca | San Diego | San Diego, CA | +1-858877-SSSS |
| Mci Worldcom Communications, Ca | San Diego | Rancho Bernardo, CA | +1-858879-SSSS |
| Mci Worldcom Communications, Ca | San Diego | San Diego, CA | +1-858880-SSSS |
| Tw Telecom Of California Lp | San Diego | La Jolla, CA | +1-858882-SSSS |
| Sprint Spectrum L.p. | San Diego | San Diego, CA | +1-858883-SSSS |
| Pacific Bell | San Diego | La Jolla, CA | +1-858886-SSSS |
| Telcentris Communications | San Diego, CA | +1-858888-SSSS | |
| San Diego | +1-858900-SSSS | ||
| Xo California | San Diego | San Diego, CA | +1-858901-SSSS |
| Mci Worldcom Communications, Ca | San Diego | San Diego, CA | +1-858905-SSSS |
| Pacific Bell | San Diego | La Jolla, CA | +1-858909-SSSS |
| Mci Worldcom Communications, Ca | San Diego | Rancho Santa Fe, CA | +1-858914-SSSS |
| Cellco Partnership DBA Verizon Wireless | San Diego | San Diego, CA | +1-858922-SSSS |
| Pac - West Telecomm | San Diego | Rancho Santa Fe, CA | +1-858923-SSSS |
| Pacific Bell | San Diego | Rancho Bernardo, CA | +1-858924-SSSS |
| O1 Communications | San Diego | San Diego, CA | +1-858925-SSSS |
| O1 Communications | San Diego | San Diego, CA | +1-858926-SSSS |
| O1 Communications | San Diego | Rancho Bernardo, CA | +1-858927-SSSS |
| Xo California | San Diego | San Diego, CA | +1-858935-SSSS |
| Pacific Bell | San Diego | San Diego, CA | +1-858939-SSSS |
| Teleport Communications Group - San Diego | San Diego | San Diego, CA | +1-858942-SSSS |
| Tw Telecom Of California Lp | San Diego | San Diego, CA | +1-858943-SSSS |
| Cellco Partnership DBA Verizon Wireless | San Diego | San Diego, CA | +1-858945-SSSS |
| Allegiance Telecom | San Diego | San Diego, CA | +1-858946-SSSS |
| Pac - West Telecomm | San Diego | Del Mar, CA | +1-858947-SSSS |
| Cook Telecom | San Diego | San Diego, CA | +1-858949-SSSS |
| Global Crossing Local Services-ca | San Diego | Rancho Santa Fe, CA | +1-858951-SSSS |
| Level 3 Communications | San Diego | La Jolla, CA | +1-858952-SSSS |
| Pac - West Telecomm | San Diego | Poway, CA | +1-858956-SSSS |
| Paetec Communications | San Diego | San Diego, CA | +1-858964-SSSS |
| Pacific Bell | San Diego | San Diego, CA | +1-858966-SSSS |
| Nextel Communications | San Diego | San Diego, CA | +1-858967-SSSS |
| Pacific Bell | San Diego | San Diego, CA | +1-858974-SSSS |
| Cellco Partnership DBA Verizon Wireless | La Jolla, CA | +1-858997-SSSS | |
| San Diego | +1-858998-SSSS | ||
| Cf Communications DBA Telekenex | San Diego, CA | +1-858999-SSSS |
