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: 772

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
657-772 A Garden Grove CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2024-12-21   
657-772 0 Garden Grove CA ANHMCACLCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2025-01-19   
657-772 1 Garden Grove CA ANHMCACLCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2025-01-19   
657-772 2 Garden Grove CA ANHMCACLCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2025-01-19   
657-772 3 Garden Grove CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2025-01-15   
657-772 4 Garden Grove CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2025-01-15   
657-772 5 Garden Grove CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2024-12-21   
657-772 6 Garden Grove CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2024-12-21   
657-772 7 Garden Grove CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2024-12-21   
657-772 8 Garden Grove CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2024-12-21   
657-772 9 Garden Grove CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2024-12-21   

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

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