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: 514

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
657-514 A Buena Park CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730      
657-514 0 Buena Park CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2021-09-27   
657-514 1 Buena Park CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2021-09-27   
657-514 2 Buena Park CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2021-09-27   
657-514 3 Buena Park CA   6529 T-MOBILE USA, INC. 730   2021-10-08   
657-514 4 Buena Park CA   6529 T-MOBILE USA, INC. 730   2021-10-08   
657-514 5 Buena Park CA   649C ONVOY, LLC - CA 730   2021-10-14   
657-514 6 Buena Park CA   649C ONVOY, LLC - CA 730   2021-10-14   
657-514 7 Buena Park CA   649C ONVOY, LLC - CA 730   2021-10-14   
657-514 9 Buena Park CA   649C ONVOY, LLC - CA 730   2022-01-06   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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