Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
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Switch: HRNDVASTDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
571-287 4 Herndon VA 9213 VERIZON VIRGINIA, INC. 236   2011-03-21   
571-287 5 Herndon VA 9213 VERIZON VIRGINIA, INC. 236   2011-03-21   
571-434 A Herndon VA 9213 VERIZON VIRGINIA, INC. 236      
703-285 A Washington Zone 17 VA 9213 VERIZON VIRGINIA, INC. 236      
703-404 A Washington Zone 19 VA 9213 VERIZON VIRGINIA, INC. 236      
703-406 A Washington Zone 19 VA 9213 VERIZON VIRGINIA, INC. 236      
703-421 A Herndon VA 9213 VERIZON VIRGINIA, INC. 236      
703-430 A Herndon VA 9213 VERIZON VIRGINIA, INC. 236      
703-433 A Herndon VA 9213 VERIZON VIRGINIA, INC. 236      
703-444 A Herndon VA 9213 VERIZON VIRGINIA, INC. 236      
703-450 A Washington Zone 19 VA 9213 VERIZON VIRGINIA, INC. 236      
703-466 6 Herndon VA 9213 VERIZON VIRGINIA, INC. 236   2004-09-30   
703-466 7 Herndon VA 9213 VERIZON VIRGINIA, INC. 236   2004-09-30   
703-466 8 Herndon VA 9213 VERIZON VIRGINIA, INC. 236   2004-09-30   
703-466 9 Herndon VA 9213 VERIZON VIRGINIA, INC. 236   2004-09-30   
703-948 A Washington Zone 19 VA 9213 VERIZON VIRGINIA, INC. 236      

Last updated: Tue, 04 May 2021 15:04:27 UTC

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