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: 605

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
657-605 A Orange CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
657-605 0 Orange CA LSANCAJW7MD  939H COMMIO, LLC 730   2024-01-28   
657-605 1 Orange CA LSANCAJW7MD  939H COMMIO, LLC 730   2024-01-28   
657-605 2 Orange CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2024-03-23   
657-605 3 Orange CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2024-04-23   
657-605 4 Orange CA   6529 T-MOBILE USA, INC. 730   2024-01-31   
657-605 5 Orange CA   6529 T-MOBILE USA, INC. 730   2024-01-31   
657-605 6 Orange CA   6529 T-MOBILE USA, INC. 730   2024-01-31   
657-605 7 Orange CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730   2022-08-15   
657-605 8 Orange CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730   2022-08-15   
657-605 9 Orange CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2023-12-21   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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