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: KGGRVAAS0MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
540-376 0 Fredericksburg VA 231C IDT AMERICA, CORP. - VA 246   2010-01-23   
540-413 1 Dahlgren VA 231C IDT AMERICA, CORP. - VA 246   2008-12-11   
540-625 A King George VA 231C IDT AMERICA, CORP. - VA 246      
540-625 2 King George VA 231C IDT AMERICA, CORP. - VA 246   2008-12-07   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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