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: 779

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
657-779 A Westminster CA ANHMCACLCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2025-02-16   
657-779 0 Westminster CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2025-04-23   
657-779 1 Westminster CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2025-02-17   
657-779 2 Westminster CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2025-02-17   
657-779 3 Westminster CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2025-02-17   
657-779 4 Westminster CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2025-03-03   
657-779 5 Westminster CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2025-03-23   
657-779 6 Westminster CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2025-03-23   
657-779 7 Westminster CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2025-04-23   
657-779 8 Westminster CA TAMQFLUNGT0  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2025-02-16   
657-779 9 Westminster CA TAMQFLUNGT0  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2025-02-16   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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