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: NRFLVABSWMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
757-974 A Norfolk Zone 2 VA 515J IP HORIZON LLC 252      
948-217 A Courtland VA 515J IP HORIZON LLC 252   2024-01-28   
948-231 A Norfolk Zone 2 VA 515J IP HORIZON LLC 252   2025-01-25   
948-232 A Norfolk Zone 3 VA 515J IP HORIZON LLC 252   2025-01-25   
948-233 A Parksley VA 515J IP HORIZON LLC 252   2025-01-25   
948-234 A Smithfield VA 515J IP HORIZON LLC 252   2025-01-25   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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