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: VINNVACBAMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
202-982 A Washington Zone 1 DC 515J IP HORIZON LLC 236      
571-288 0 Dale City VA 515J IP HORIZON LLC 236   2021-08-21   
571-462 0 Occoquan VA 515J IP HORIZON LLC 236   2021-08-21   
571-507 2 Washington Zone 17 VA 515J IP HORIZON LLC 236   2021-08-21   
571-519 5 Herndon VA 515J IP HORIZON LLC 236   2021-08-21   
571-561 0 Haymarket VA 515J IP HORIZON LLC 236   2021-08-21   
571-573 0 Nokesville VA 515J IP HORIZON LLC 236   2021-08-22   
571-615 1 Independent Hill VA 515J IP HORIZON LLC 236   2021-08-22   
571-646 1 Engleside VA 515J IP HORIZON LLC 236   2021-08-21   
571-667 1 Lorton VA 515J IP HORIZON LLC 236   2021-08-21   
571-686 0 Braddock VA 515J IP HORIZON LLC 236   2021-08-21   
571-773 1 Dulles Metro VA 515J IP HORIZON LLC 236   2021-08-21   
571-774 1 Triangle VA 515J IP HORIZON LLC 236   2021-08-21   
571-877 0 Lorton Metro VA 515J IP HORIZON LLC 236   2021-08-22   
571-934 5 Dulles VA 515J IP HORIZON LLC 236   2021-08-22   
703-722 7 Arcola VA 515J IP HORIZON LLC 236   2021-08-21   

Last updated: Fri, 13 May 2022 22:16:13 UTC

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