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: 526

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
657-526 A Anaheim CA GRDNCA02KMD  7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730      
657-526 0 Anaheim CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2021-12-10   
657-526 1 Anaheim CA LSANCA03GMD  624H ONVOY SPECTRUM, LLC 730   2021-11-15   
657-526 2 Anaheim CA LSANCA03GMD  624H ONVOY SPECTRUM, LLC 730   2021-11-15   
657-526 3 Anaheim CA LSANCA03GMD  624H ONVOY SPECTRUM, LLC 730   2021-11-15   
657-526 4 Anaheim CA LSANCA03GMD  624H ONVOY SPECTRUM, LLC 730   2021-11-15   
657-526 5 Anaheim CA LSANCA03GMD  624H ONVOY SPECTRUM, LLC 730   2021-11-15   
657-526 6 Anaheim CA GRDNCA02KMD  7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2021-11-11   
657-526 7 Anaheim CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2021-11-19   
657-526 8 Anaheim CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2021-11-19   
657-526 9 Anaheim CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2021-12-10   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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