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.


NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
540-593 A Ballard VA FLYDVAXADS1  244      
540-651 A Locust Grove VA FLYDVAXADS1  244      
540-745 A Floyd VA FLYDVAXADS1  244      
540-763 A Alum Ridge VA FLYDVAXADS1  244      
540-789 A Willis VA FLYDVAXADS1  244      

Last updated: Tue, 24 Jan 2023 03:01:57 UTC

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