Local Calling Guide

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NPA: 571 [Rate centres in NPA 571] [Dial plan for NPA 571]

NXX: 612

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
571-612 A Herndon VA WASKDCFNAMD  6827 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 236      
571-612 0 Herndon VA WASKDCFNAMD  6827 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 236   2011-08-18   
571-612 1 Herndon VA BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2010-11-09   
571-612 2 Herndon VA WASHDCCZDS1  4772 XO VIRGINIA, LLC 236   2010-11-17   
571-612 3 Herndon VA WASHDCCZDS1  4772 XO VIRGINIA, LLC 236   2010-11-17   
571-612 4 Herndon VA LARLMDCC5MD  7769 LEVEL 3 TELECOM OF VIRGINIA, LLC - VA 236   2010-12-10   
571-612 5 Herndon VA TYCRVA03AMD  8357 US LEC OF VIRGININA, LLC 236   2010-11-09   
571-612 6 Herndon VA WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2011-01-11   
571-612 7 Herndon VA WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2011-01-25   
571-612 8 Herndon VA FLCHVA19DS0  7189 COX VIRGINIA TELCOM, INC. - VA 236   2010-12-06   
571-612 9 Herndon VA WASKDCFNAMD  6827 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 236   2012-07-20   

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

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