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: 757

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
858-757 A San Diego: Mira Mesa DA CA SNDGCAJWDS0  649C ONVOY, LLC - CA 732      
858-757 0 San Diego: Mira Mesa DA CA VISTCA65CM0  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 732   2016-04-03   
858-757 1 San Diego: Mira Mesa DA CA VISTCA65CM0  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 732   2016-04-03   
858-757 2 San Diego: Mira Mesa DA CA VISTCA65CM0  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 732   2016-05-03   
858-757 3 San Diego: Mira Mesa DA CA VISTCA65CM0  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 732   2016-05-03   
858-757 4 San Diego: Mira Mesa DA CA VISTCA65CM0  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 732   2016-04-03   
858-757 5 San Diego: Mira Mesa DA CA VISTCA65CM0  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 732   2016-06-03   
858-757 6 San Diego: Mira Mesa DA CA VISTCA65CM0  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 732   2016-06-03   
858-757 7 San Diego: Mira Mesa DA CA SNDGCAJWDS0  649C ONVOY, LLC - CA 732   2016-03-28   
858-757 8 San Diego: Mira Mesa DA CA SNDGCAJWDS0  649C ONVOY, LLC - CA 732   2016-03-28   
858-757 9 San Diego: Mira Mesa DA CA SNDGCA0242Z  516C AT&T CORP. 732   2016-06-12   

Last updated: Tue, 04 May 2021 15:04:27 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.