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:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
657-478 A Brea CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2017-08-10   
657-478 0 Brea CA   649C ONVOY, LLC - CA 730   2019-03-03   
657-478 1 Brea CA   649C ONVOY, LLC - CA 730   2019-03-03   
657-478 2 Brea CA   320H VODEX COMMUNICATIONS CORPORATION - CA 730   2018-04-19   
657-478 4 Brea CA   707H INTEGRATED PATH COMMUNICATIONS, LLC - CA 730   2018-05-08   
657-478 5 Brea CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2019-11-23   
657-478 6 Brea CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2019-01-13   
657-478 7 Brea CA   073H TELNYX LLC 730   2018-07-09   
657-478 8 Brea CA   6529 T-MOBILE USA, INC. 730   2017-11-24   
657-478 9 Brea CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2017-08-10   

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

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