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.

OCN: 514G ATLANTECH ONLINE OF VIRGINIA, L.L.C.

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
571-444 0 Washington Zone 8 VA VINNVACB1MD  236   2015-12-25   
571-474 0 Washington Zone 19 VA VINNVACB1MD  236   2015-12-25   

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.