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
657-400 A Westminster CA   649C ONVOY, LLC - CA 730      
657-400 0 Westminster CA   649C ONVOY, LLC - CA 730   2012-05-31   
657-400 1 Westminster CA   4733 PAETEC COMMUNICATIONS, INC. - CA 730   2012-07-19   
657-400 2 Westminster CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2012-10-08   
657-400 3 Westminster CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2012-10-08   
657-400 4 Westminster CA   649C ONVOY, LLC - CA 730   2012-05-31   
657-400 5 Westminster CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2012-10-08   
657-400 6 Westminster CA   6529 T-MOBILE USA, INC. 730   2012-08-27   
657-400 7 Westminster CA   7575 CENTURYLINK COMMUNICATIONS LLC 730   2013-03-15   
657-400 8 Westminster CA   649C ONVOY, LLC - CA 730   2013-03-27   
657-400 9 Westminster CA   576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2013-08-22   

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

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