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: 634

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
858-634 A San Diego: Linda Vista DA CA SNDGCA0268Z  318J COMCAST IP PHONE, LLC 732      
858-634 0 San Diego: Linda Vista DA CA SNDGCA02XIZ  981E BANDWIDTH.COM CLEC, LLC - CA 732      
858-634 1 San Diego: Linda Vista DA CA SNDGCA0268Z  318J COMCAST IP PHONE, LLC 732      
858-634 2 San Diego: Linda Vista DA CA SNDGCA02XIZ  981E BANDWIDTH.COM CLEC, LLC - CA 732      
858-634 3 San Diego: Linda Vista DA CA SNDICAETDS0  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 732      
858-634 4 San Diego: Linda Vista DA CA SNDGCA0268Z  318J COMCAST IP PHONE, LLC 732      
858-634 5 San Diego: Linda Vista DA CA SNDGCA0268Z  318J COMCAST IP PHONE, LLC 732      
858-634 6 San Diego: Linda Vista DA CA SNDKCA882MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 732      
858-634 7 San Diego: Linda Vista DA CA SNDGCA0268Z  318J COMCAST IP PHONE, LLC 732      
858-634 8 San Diego: Linda Vista DA CA SNDGCA0268Z  318J COMCAST IP PHONE, LLC 732      
858-634 9 San Diego: Linda Vista DA CA SNDGCA02XIZ  981E BANDWIDTH.COM CLEC, LLC - CA 732      

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.