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: 657 [Rate centres in NPA 657] [Dial plan for NPA 657]

NXX:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
657-312 A Huntington Beach CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730      
657-312 0 Huntington Beach CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2016-05-13   
657-312 1 Huntington Beach CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2016-05-13   
657-312 2 Huntington Beach CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2016-05-13   
657-312 3 Huntington Beach CA   649C ONVOY, LLC - CA 730   2016-05-14   
657-312 4 Huntington Beach CA   649C ONVOY, LLC - CA 730   2016-05-14   
657-312 5 Huntington Beach CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2016-05-13   
657-312 6 Huntington Beach CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2016-05-13   
657-312 7 Huntington Beach CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2016-05-13   
657-312 8 Huntington Beach CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2016-05-13   
657-312 9 Huntington Beach CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2016-05-13   

Last updated: Sat, 11 Jul 2020 20:37:26 UTC

Sponsored by: VoiceMeUp - Corporate VoIP Services

Like this site? We accept donations via PayPal.