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: 478

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
657-478 A Brea CA ANHMCACLCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
657-478 0 Brea CA LSANCARCD3S  649C ONVOY, LLC - CA 730      
657-478 1 Brea CA LSANCARCD3S  649C ONVOY, LLC - CA 730      
657-478 2 Brea CA LSANCARCD3S  649C ONVOY, LLC - CA 730      
657-478 3 Brea CA LSANCARCD3S  649C ONVOY, LLC - CA 730      
657-478 4 Brea CA LNBHCAAXDS0  707H INTEGRATED PATH COMMUNICATIONS, LLC - CA 730      
657-478 5 Brea CA ANHMCACLCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
657-478 6 Brea CA ANHMCACLCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
657-478 7 Brea CA LSANCAJW6MD  073H TELNYX LLC 730      
657-478 8 Brea CA RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730      
657-478 9 Brea CA ANHMCACLCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 730      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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