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: 712

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
657-712 A Anaheim CA GRDNCA02KMD  7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2024-01-14   
657-712 0 Anaheim CA   6529 T-MOBILE USA, INC. 730   2024-02-10   
657-712 1 Anaheim CA   6529 T-MOBILE USA, INC. 730   2024-02-10   
657-712 2 Anaheim CA   6529 T-MOBILE USA, INC. 730   2024-02-10   
657-712 3 Anaheim CA   6529 T-MOBILE USA, INC. 730   2024-02-10   
657-712 4 Anaheim CA   6529 T-MOBILE USA, INC. 730   2024-02-10   
657-712 5 Anaheim CA   6529 T-MOBILE USA, INC. 730   2024-02-10   
657-712 6 Anaheim CA GRDNCA02KMD  7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2024-01-14   
657-712 7 Anaheim CA   6529 T-MOBILE USA, INC. 730   2024-02-10   
657-712 8 Anaheim CA   6529 T-MOBILE USA, INC. 730   2024-02-10   
657-712 9 Anaheim CA   6529 T-MOBILE USA, INC. 730   2024-02-10   

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

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