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: HRNDVADUDS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
571-643 A Herndon VA 9213 VERIZON VIRGINIA, INC. 236      
571-643 0 Herndon VA 9213 VERIZON VIRGINIA, INC. 236      
571-643 7 Herndon VA 9213 VERIZON VIRGINIA, INC. 236      
703-466 A Herndon VA 9213 VERIZON VIRGINIA, INC. 236      
703-466 4 Herndon VA 9213 VERIZON VIRGINIA, INC. 236   2004-10-22   
703-484 A Washington Zone 19 VA 9213 VERIZON VIRGINIA, INC. 236      
703-561 A Washington Zone 19 VA 9213 VERIZON VIRGINIA, INC. 236      
703-713 A Washington Zone 19 VA 9213 VERIZON VIRGINIA, INC. 236      
703-713 0 Washington Zone 19 VA 9213 VERIZON VIRGINIA, INC. 236      
703-713 1 Washington Zone 19 VA 9213 VERIZON VIRGINIA, INC. 236      
703-713 3 Washington Zone 19 VA 9213 VERIZON VIRGINIA, INC. 236      
703-713 4 Washington Zone 19 VA 9213 VERIZON VIRGINIA, INC. 236      
703-713 6 Washington Zone 19 VA 9213 VERIZON VIRGINIA, INC. 236      
703-713 9 Washington Zone 19 VA 9213 VERIZON VIRGINIA, INC. 236      
703-793 A Herndon VA 9213 VERIZON VIRGINIA, INC. 236      

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

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