Local Calling Guide

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

NXX: 921

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
571-921 A Manassas VA MNSSVAXADS0  0233 VERIZON SOUTH, INC. - VA (CONTEL) 236      
571-921 0 Manassas VA BTVLMD12CM9  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2003-07-23   
571-921 1 Manassas VA MNSSVAXADS0  0233 VERIZON SOUTH, INC. - VA (CONTEL) 236      
571-921 2 Manassas VA BTVLMD12CM9  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2003-07-23   
571-921 3 Manassas VA MNSSVAXADS0  0233 VERIZON SOUTH, INC. - VA (CONTEL) 236      
571-921 4 Manassas VA MCLNVA23DS4  8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2003-01-06   
571-921 5 Manassas VA BTVLMD12CM9  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2003-07-23   
571-921 6 Manassas VA BTVLMD12CM9  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2003-07-23   
571-921 7 Manassas VA BTVLMD12CM9  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2003-07-23   
571-921 8 Manassas VA MNSSVAXADS0  0233 VERIZON SOUTH, INC. - VA (CONTEL) 236      
571-921 9 Manassas VA MCLNVA23DS4  8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2004-12-06   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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