Local Calling Guide

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

NXX: 502

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
657-502 A Huntington Beach CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730      
657-502 0 Huntington Beach CA LNBHCAXPXBY  649C ONVOY, LLC - CA 730   2021-08-10   
657-502 1 Huntington Beach CA LNBHCAXPXBY  649C ONVOY, LLC - CA 730   2021-08-10   
657-502 2 Huntington Beach CA LNBHCAXPXBY  649C ONVOY, LLC - CA 730   2021-08-10   
657-502 3 Huntington Beach CA LNBHCAXPXBY  649C ONVOY, LLC - CA 730   2021-08-10   
657-502 4 Huntington Beach CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2021-08-14   
657-502 5 Huntington Beach CA LSANCA03IMD  553J WHITESKY COMMUNICATIONS, LLC 730   2021-10-01   
657-502 6 Huntington Beach CA ANHMCACLCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2021-10-21   
657-502 7 Huntington Beach CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2021-08-09   
657-502 8 Huntington Beach CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2021-08-09   
657-502 9 Huntington Beach CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2021-08-09   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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