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: 294

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
858-294 A Chula Vista CA SNDGCA02XIZ  981E BANDWIDTH.COM CLEC, LLC - CA 732      
858-294 0 Chula Vista CA SNDGCA02XIZ  981E BANDWIDTH.COM CLEC, LLC - CA 732   2019-09-21   
858-294 1 Chula Vista CA SNDGCA02XIZ  981E BANDWIDTH.COM CLEC, LLC - CA 732   2019-09-21   
858-294 2 Chula Vista CA SNDICAETAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 732   2019-09-22   
858-294 3 Chula Vista CA SNDGCA0268Z  318J COMCAST IP PHONE LLC 732   2019-09-22   
858-294 4 Chula Vista CA SNDGCA0268Z  318J COMCAST IP PHONE LLC 732   2019-09-22   
858-294 5 Chula Vista CA SNDICAETAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 732   2019-09-22   
858-294 6 Chula Vista CA SNDICAETAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 732   2019-09-30   
858-294 7 Chula Vista CA SNDICAETAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 732   2019-09-30   
858-294 8 Chula Vista CA SNDICAETAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 732   2019-10-30   
858-294 9 Chula Vista CA SNDGCA51CM3  6010 NEW CINGULAR WIRELESS PCS, LLC 732   2020-07-14   

Last updated: Fri, 13 May 2022 22:16:13 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.