Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 858 [Rate centres in NPA 858] [Dial plan for NPA 858]

NXX: 339

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
858-339 A El Cajon CA SNDICAETAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 732      
858-339 0 El Cajon CA SNDICAETAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 732      
858-339 1 El Cajon CA SNDICAETAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 732      
858-339 2 El Cajon CA SNDGCAJWDS0  649C ONVOY, LLC - CA 732      
858-339 3 El Cajon CA SNDGCAJWDS0  649C ONVOY, LLC - CA 732      
858-339 4 El Cajon CA SNDGCAJWDS0  649C ONVOY, LLC - CA 732      
858-339 5 El Cajon CA SNDGCAJW6MD  073H TELNYX LLC 732      
858-339 6 El Cajon CA SNDICAETAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 732      
858-339 7 El Cajon CA SNDGCAJWDS0  649C ONVOY, LLC - CA 732      
858-339 8 El Cajon CA SNDGCAJWDS0  649C ONVOY, LLC - CA 732      
858-339 9 El Cajon CA   073H TELNYX LLC 732      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.