Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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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
657-306 A Westminster CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730      
657-306 0 Westminster CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2016-05-08   
657-306 1 Westminster CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2016-05-08   
657-306 2 Westminster CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2016-05-08   
657-306 3 Westminster CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2016-05-08   
657-306 4 Westminster CA   649C ONVOY, LLC - CA 730   2016-05-09   
657-306 5 Westminster CA   649C ONVOY, LLC - CA 730   2016-05-09   
657-306 6 Westminster CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2016-12-27   
657-306 7 Westminster CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2016-05-08   
657-306 8 Westminster CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2016-05-08   
657-306 9 Westminster CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2016-12-27   

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

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