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.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Switch: HRNDVAHEDS0

1 2 3 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
571-203 A Herndon VA 9213 VERIZON VIRGINIA, INC. 236      
571-346 4 Herndon VA 9213 VERIZON VIRGINIA, INC. 236   2009-09-17   
571-346 5 Herndon VA 9213 VERIZON VIRGINIA, INC. 236   2009-09-17   
571-346 6 Herndon VA 9213 VERIZON VIRGINIA, INC. 236   2009-09-17   
571-346 8 Herndon VA 9213 VERIZON VIRGINIA, INC. 236   2009-09-17   
703-318 A Washington Zone 19 VA 9213 VERIZON VIRGINIA, INC. 236      
703-326 A Washington Zone 19 VA 9213 VERIZON VIRGINIA, INC. 236      
703-364 A Washington Zone 19 VA 9213 VERIZON VIRGINIA, INC. 236      
703-364 0 Washington Zone 19 VA 9213 VERIZON VIRGINIA, INC. 236      
703-364 1 Washington Zone 19 VA 9213 VERIZON VIRGINIA, INC. 236      
703-364 2 Washington Zone 19 VA 9213 VERIZON VIRGINIA, INC. 236      
703-364 3 Washington Zone 19 VA 9213 VERIZON VIRGINIA, INC. 236      
703-364 4 Washington Zone 19 VA 9213 VERIZON VIRGINIA, INC. 236      
703-364 6 Washington Zone 19 VA 9213 VERIZON VIRGINIA, INC. 236      
703-364 7 Washington Zone 19 VA 9213 VERIZON VIRGINIA, INC. 236      
703-375 A Washington Zone 19 VA 9213 VERIZON VIRGINIA, INC. 236      
703-375 0 Washington Zone 19 VA 9213 VERIZON VIRGINIA, INC. 236      
703-375 1 Washington Zone 19 VA 9213 VERIZON VIRGINIA, INC. 236      
703-375 2 Washington Zone 19 VA 9213 VERIZON VIRGINIA, INC. 236      
703-375 3 Washington Zone 19 VA 9213 VERIZON VIRGINIA, INC. 236      
703-375 4 Washington Zone 19 VA 9213 VERIZON VIRGINIA, INC. 236      
703-375 5 Washington Zone 19 VA 9213 VERIZON VIRGINIA, INC. 236      
703-375 6 Washington Zone 19 VA 9213 VERIZON VIRGINIA, INC. 236      
703-375 7 Washington Zone 19 VA 9213 VERIZON VIRGINIA, INC. 236      
703-375 8 Washington Zone 19 VA 9213 VERIZON VIRGINIA, INC. 236      
703-397 A Washington Zone 19 VA 9213 VERIZON VIRGINIA, INC. 236      
703-397 0 Washington Zone 19 VA 9213 VERIZON VIRGINIA, INC. 236      
703-397 1 Washington Zone 19 VA 9213 VERIZON VIRGINIA, INC. 236      
703-397 2 Washington Zone 19 VA 9213 VERIZON VIRGINIA, INC. 236      
703-397 5 Washington Zone 19 VA 9213 VERIZON VIRGINIA, INC. 236      
703-397 9 Washington Zone 19 VA 9213 VERIZON VIRGINIA, INC. 236      
703-435 A Herndon VA 9213 VERIZON VIRGINIA, INC. 236      
703-437 A Herndon VA 9213 VERIZON VIRGINIA, INC. 236      
703-456 A Washington Zone 19 VA 9213 VERIZON VIRGINIA, INC. 236      
703-464 A Herndon VA 9213 VERIZON VIRGINIA, INC. 236      
703-467 A Herndon VA 9213 VERIZON VIRGINIA, INC. 236      
703-471 A Washington Zone 19 VA 9213 VERIZON VIRGINIA, INC. 236      
703-478 A Washington Zone 19 VA 9213 VERIZON VIRGINIA, INC. 236      
703-478 0 Washington Zone 19 VA 9213 VERIZON VIRGINIA, INC. 236      
703-478 2 Washington Zone 19 VA 9213 VERIZON VIRGINIA, INC. 236      
703-478 3 Washington Zone 19 VA 9213 VERIZON VIRGINIA, INC. 236      
703-478 5 Washington Zone 19 VA 9213 VERIZON VIRGINIA, INC. 236      
703-478 6 Washington Zone 19 VA 9213 VERIZON VIRGINIA, INC. 236      
703-478 7 Washington Zone 19 VA 9213 VERIZON VIRGINIA, INC. 236      
703-478 9 Washington Zone 19 VA 9213 VERIZON VIRGINIA, INC. 236      
703-481 A Herndon VA 9213 VERIZON VIRGINIA, INC. 236      
703-668 A Herndon VA 9213 VERIZON VIRGINIA, INC. 236      
703-668 0 Herndon VA 9213 VERIZON VIRGINIA, INC. 236      
703-668 1 Herndon VA 9213 VERIZON VIRGINIA, INC. 236      
703-668 3 Herndon VA 9213 VERIZON VIRGINIA, INC. 236      

1 2 3 >>

Last updated: Thu, 05 Feb 2026 23:41:55 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.