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: 768

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
657-768 A Anaheim CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2024-11-15   
657-768 0 Anaheim CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2024-11-15   
657-768 1 Anaheim CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2024-11-15   
657-768 2 Anaheim CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2024-11-15   
657-768 3 Anaheim CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2024-11-15   
657-768 4 Anaheim CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2024-11-15   
657-768 5 Anaheim CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2024-11-15   
657-768 6 Anaheim CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2024-11-15   
657-768 7 Anaheim CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2024-11-15   
657-768 9 Anaheim CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2024-11-15   

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

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