Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 657 [Rate centres in NPA 657] [Dial plan for NPA 657]

NXX: 235

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
657-235 A Santa Ana CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730      
657-235 0 Santa Ana CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730      
657-235 1 Santa Ana CA   478A DMR COMMUNICATIONS INC. - CA 730      
657-235 2 Santa Ana CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730      
657-235 3 Santa Ana CA IRVECAEIDS0  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 730      
657-235 4 Santa Ana CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730      
657-235 5 Santa Ana CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      
657-235 6 Santa Ana CA IRVECAJTRS0  7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 730      
657-235 7 Santa Ana CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
657-235 8 Santa Ana CA SHOKCA022MD  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730      
657-235 9 Santa Ana CA LSANCARCD3S  649C ONVOY, LLC - CA 730      

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.