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: 261

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
657-261 A Santa Ana CA LSANCARCD3S  649C ONVOY, LLC - CA 730      
657-261 0 Santa Ana CA   899D METROPCS NETWORKS, LLC 730   2018-09-07   
657-261 1 Santa Ana CA   899D METROPCS NETWORKS, LLC 730   2014-12-29   
657-261 2 Santa Ana CA   829J PAETEC ITEL, LLC 730   2015-02-25   
657-261 3 Santa Ana CA   7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 730   2014-12-29   
657-261 4 Santa Ana CA   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730   2014-12-29   
657-261 5 Santa Ana CA   649C ONVOY, LLC - CA 730   2014-12-30   
657-261 6 Santa Ana CA   649C ONVOY, LLC - CA 730   2014-12-30   
657-261 7 Santa Ana CA   649C ONVOY, LLC - CA 730   2014-12-30   
657-261 8 Santa Ana CA   649C ONVOY, LLC - CA 730   2014-12-30   
657-261 9 Santa Ana CA   649C ONVOY, LLC - CA 730   2014-12-30   

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

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