Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 703 [Rate centres in NPA 703] [Dial plan for NPA 703]

NXX: 657

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
703-657 A Herndon VA WASKDCFNAMD  6827 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 236      
703-657 0 Herndon VA FLCHVA19DS0  7189 COX VIRGINIA TELCOM, INC. - VA 236   2007-05-23   
703-657 1 Herndon VA MCLNVA23DS4  8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2006-12-14   
703-657 2 Herndon VA FLCHVA19DS0  7189 COX VIRGINIA TELCOM, INC. - VA 236   2007-09-13   
703-657 3 Herndon VA FLCHVA19DS0  7189 COX VIRGINIA TELCOM, INC. - VA 236   2007-03-15   
703-657 4 Herndon VA WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2006-10-31   
703-657 5 Herndon VA VINNVACBDS0  138E ONVOY, LLC - VA 236   2010-10-20   
703-657 6 Herndon VA TYCRVA03AMD  8357 US LEC OF VIRGININA, LLC 236   2007-11-16   
703-657 7 Herndon VA WASHDCCZDS1  4772 XO VIRGINIA, LLC 236   2007-07-16   
703-657 8 Herndon VA WASHDCCZDS1  4772 XO VIRGINIA, LLC 236   2007-07-16   
703-657 9 Herndon VA WASKDCFNAMD  6827 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 236   2006-10-24   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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