Local Calling Guide

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

NXX: 304

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
571-304 A Herndon VA CNVIVACTDS0  9213 VERIZON VIRGINIA, INC. 236      
571-304 0 Herndon VA   9213 VERIZON VIRGINIA, INC. 236   2014-02-27   
571-304 1 Herndon VA   9213 VERIZON VIRGINIA, INC. 236   2014-02-27   
571-304 2 Herndon VA   9213 VERIZON VIRGINIA, INC. 236   2014-02-27   
571-304 3 Herndon VA   9213 VERIZON VIRGINIA, INC. 236   2014-02-27   
571-304 4 Herndon VA   9213 VERIZON VIRGINIA, INC. 236   2014-02-27   
571-304 5 Herndon VA   9213 VERIZON VIRGINIA, INC. 236   2014-02-27   
571-304 6 Herndon VA   9213 VERIZON VIRGINIA, INC. 236   2014-02-27   
571-304 7 Herndon VA   9213 VERIZON VIRGINIA, INC. 236   2014-02-27   
571-304 8 Herndon VA   9213 VERIZON VIRGINIA, INC. 236   2014-02-27   
571-304 9 Herndon VA   9213 VERIZON VIRGINIA, INC. 236   2014-02-27   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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