Telephone Area 858. .
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 |
|---|---|---|---|
| U.s. Telepacific Corp. | San Diego | La Jolla, CA | +1-858200-SSSS |
| Level 3 Communications | San Diego | San Diego, CA | +1-858201-SSSS |
| Pacific Bell | San Diego | La Jolla, CA | +1-858202-SSSS |
| Cellco Partnership DBA Verizon Wireless | San Diego | San Diego, CA | +1-858204-SSSS |
| T-mobile Usa | San Diego | San Diego, CA | +1-858205-SSSS |
| Ymax Communications Corp. | Poway, CA | +1-858206-SSSS | |
| Teleport Communications Group - San Diego | San Diego | Rancho Bernardo, CA | +1-858207-SSSS |
| O1 Communications | San Diego | San Diego, CA | +1-858208-SSSS |
| Cellco Partnership DBA Verizon Wireless | La Jolla, CA | +1-858210-SSSS | |
| Sprint Spectrum L.p. | San Diego | San Diego, CA | +1-858212-SSSS |
| Sprint Spectrum L.p. | San Diego | San Diego, CA | +1-858213-SSSS |
| Pacific Bell | San Diego, CA | +1-858215-SSSS | |
| U.s. Telepacific Corp. | San Diego | San Diego, CA | +1-858216-SSSS |
| U.s. Telepacific Corp. | San Diego | San Diego, CA | +1-858217-SSSS |
| U.s. Telepacific Corp. | San Diego | San Diego, CA | +1-858218-SSSS |
| American Messaging Services | San Diego | San Diego, CA | +1-858219-SSSS |
| Sprint Spectrum L.p. | San Diego | La Jolla, CA | +1-858220-SSSS |
| Ymax Communications Corp. | La Jolla, CA | +1-858222-SSSS | |
| Cbeyond Communications | San Diego, CA | +1-858224-SSSS | |
| Pac - West Telecomm | San Diego | San Diego, CA | +1-858225-SSSS |
| Xo California | San Diego | San Diego, CA | +1-858227-SSSS |
| Xo California | San Diego | La Jolla, CA | +1-858228-SSSS |
| Cellco Partnership DBA Verizon Wireless | San Diego | San Diego, CA | +1-858229-SSSS |
| T-mobile Usa | San Diego | Poway, CA | +1-858231-SSSS |
| New Cingular Wireless PCS | San Diego | La Jolla, CA | +1-858232-SSSS |
| North County Communications Corp. | San Diego | La Jolla, CA | +1-858233-SSSS |
| North County Communications Corp. | San Diego | Rancho Bernardo, CA | +1-858234-SSSS |
| American Messaging Services | San Diego | Poway, CA | +1-858235-SSSS |
| North County Communications Corp. | San Diego | Poway, CA | +1-858236-SSSS |
| North County Communications Corp. | San Diego | San Diego, CA | +1-858237-SSSS |
| Tw Telecom Of California Lp | San Diego | San Diego, CA | +1-858240-SSSS |
| San Diego | +1-858241-SSSS | ||
| New Cingular Wireless PCS | +1-858242-SSSS | ||
| Cellco Partnership DBA Verizon Wireless | San Diego | San Diego, CA | +1-858243-SSSS |
| Xo California | San Diego | San Diego, CA | +1-858244-SSSS |
| Cellco Partnership DBA Verizon Wireless | San Diego | La Jolla, CA | +1-858245-SSSS |
| Tw Telecom Of California Lp | La Jolla, CA | +1-858246-SSSS | |
| Cellco Partnership DBA Verizon Wireless | San Diego | Poway, CA | +1-858248-SSSS |
| Sprint Spectrum L.p. | San Diego | San Diego, CA | +1-858254-SSSS |
| Teleport Communications Group - San Diego | San Diego | La Jolla, CA | +1-858255-SSSS |
| Pacific Bell | San Diego | Del Mar, CA | +1-858259-SSSS |
| Pacific Bell | San Diego | San Diego, CA | +1-858268-SSSS |
| Pacific Bell | San Diego | La Jolla, CA | +1-858270-SSSS |
| Pacific Bell | San Diego | San Diego, CA | +1-858271-SSSS |
| Pacific Bell | San Diego | La Jolla, CA | +1-858272-SSSS |
| Pacific Bell | San Diego | La Jolla, CA | +1-858273-SSSS |
| Pacific Bell | San Diego | La Jolla, CA | +1-858274-SSSS |
| Pacific Bell | San Diego | San Diego, CA | +1-858277-SSSS |
| Pacific Bell | San Diego | San Diego, CA | +1-858278-SSSS |
| Pacific Bell | San Diego | San Diego, CA | +1-858279-SSSS |
| San Diego | +1-858289-SSSS | ||
| Pacific Bell | San Diego | San Diego, CA | +1-858292-SSSS |
| North County Communications Corp. | San Diego | Del Mar, CA | +1-858297-SSSS |
| U.s. Telepacific Corp. | San Diego | San Diego, CA | +1-858300-SSSS |
| San Diego | +1-858302-SSSS | ||
| AT&T Local | San Diego | Rancho Bernardo, CA | +1-858304-SSSS |
| Tw Telecom Of California Lp | San Diego | San Diego, CA | +1-858309-SSSS |
| Cox California Telcom | San Diego | Rancho Bernardo, CA | +1-858312-SSSS |
| Teleport Communications Group - San Diego | San Diego | Del Mar, CA | +1-858314-SSSS |
| Pacific Bell | San Diego | La Jolla, CA | +1-858320-SSSS |
| Teleport Communications Group - San Diego | San Diego | San Diego, CA | +1-858324-SSSS |
| +1-858326-SSSS | |||
| Tw Telecom Of California Lp | San Diego | La Jolla, CA | +1-858332-SSSS |
| Telcentris Communications | La Jolla, CA | +1-858333-SSSS | |
| Pacific Bell | San Diego | La Jolla, CA | +1-858334-SSSS |
| New Cingular Wireless PCS | San Diego | Poway, CA | +1-858335-SSSS |
| New Cingular Wireless PCS | San Diego | San Diego, CA | +1-858336-SSSS |
| New Cingular Wireless PCS | San Diego | San Diego, CA | +1-858337-SSSS |
| New Cingular Wireless PCS | San Diego | Del Mar, CA | +1-858342-SSSS |
| New Cingular Wireless PCS | San Diego | San Diego, CA | +1-858344-SSSS |
| Cox California Telcom | San Diego | Del Mar, CA | +1-858345-SSSS |
| Global Crossing Local Services-ca | San Diego | San Diego, CA | +1-858346-SSSS |
| Usa Mobility Wireless | San Diego | Del Mar, CA | +1-858347-SSSS |
| Xo California | San Diego | San Diego, CA | +1-858348-SSSS |
| New Cingular Wireless PCS | San Diego | San Diego, CA | +1-858349-SSSS |
| Pacific Bell | San Diego | Del Mar, CA | +1-858350-SSSS |
| San Diego | +1-858351-SSSS | ||
| Mci Worldcom Communications, Ca | San Diego | San Diego, CA | +1-858352-SSSS |
| New Cingular Wireless PCS | San Diego | Del Mar, CA | +1-858353-SSSS |
| Cellco Partnership DBA Verizon Wireless | San Diego | San Diego, CA | +1-858354-SSSS |
