Area code 858 was first put in service June 12, 1999. Area code 858 is in USA (California). 1-800-database has 1056 records on file with a phone number in the area code of (858) and 52 comments.
The carriers providing phone numbers in 858 area code are: American Messaging (am), American Messaging Services, AT&T Local, Bandwidth.com Clec, Cbeyond Communications, Cellco Partnership DBA Verizon Wireless, Cf Communications DBA Telekenex, Cox California Telcom, L.l.c., Global Crossing Local Services-ca, Leap Wireless Intl DBA Cricket Comm, Level 3 Communications, Mci Worldcom Communications, Ca, Mpower Communications Corp, Network Services LLC (tsr), Neutral Tandem-california, New Cingular Wireless PCS, North County Communications Corp., O1 Communications, Onvoy, Pacific Bell, Pac - West Telecomm, Paetec Communications, Peerless Network Of California, Sbc Internet Services, Sprint Spectrum L.p., Telcentris Communications, Teleport Communications America, Time Warner Cbl Info Svcs (ca) DBAtime Warner Cbl, T-mobile Usa, Tw Telecom Of California Lp, Usa Mobility Wireless, U.s. Telepacific Corp., Vaya Telecom, Xo California, Ymax Communications Corp..
Counties located in area code 858 are: LASSEN, SAN DIEGO.
Largest city: San Diego
In service since: 06/12/1999
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