Local Calling Guide

Area code/prefix search

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

NXX: 670

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
657-670 A Westminster CA LNBHCAXPXBY  649C ONVOY, LLC - CA 730   2024-01-23   
657-670 0 Westminster CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2023-10-16   
657-670 1 Westminster CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2023-11-12   
657-670 2 Westminster CA LNBHCAXPXBY  649C ONVOY, LLC - CA 730   2023-10-16   
657-670 3 Westminster CA LNBHCAXPXBY  649C ONVOY, LLC - CA 730   2023-06-11   
657-670 4 Westminster CA LNBHCAXPXBY  649C ONVOY, LLC - CA 730   2023-06-11   
657-670 5 Westminster CA LNBHCAXPXBY  649C ONVOY, LLC - CA 730   2023-10-16   
657-670 6 Westminster CA LNBHCAXPXBY  649C ONVOY, LLC - CA 730   2023-10-16   
657-670 7 Westminster CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2023-10-11   
657-670 8 Westminster CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2023-09-10   
657-670 9 Westminster CA LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2023-07-13   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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