Local Calling Guide

Area code/prefix search

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NPA: 510 [Rate centres in NPA 510] [Dial plan for NPA 510]

NXX: 256

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
510-256 A Crockett CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722      
510-256 0 Crockett CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2005-04-16   
510-256 1 Crockett CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2010-08-09   
510-256 2 Crockett CA SNVACAHZ0MD  508J CENTURYLINK COMMUNICATIONS, LLC 722   2014-03-28   
510-256 3 Crockett CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2013-04-29   
510-256 4 Crockett CA SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722   2009-03-20   
510-256 5 Crockett CA   515J IP HORIZON LLC 722   2002-10-12   
510-256 6 Crockett CA HYWRCAMCDS0  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 722   2015-06-17   
510-256 7 Crockett CA SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2013-03-25   
510-256 8 Crockett CA SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2013-03-25   
510-256 9 Crockett CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2010-08-28   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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