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: 540 [Rate centres in NPA 540] [Dial plan for NPA 540]

NXX: 973

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
540-973 A The Plains VA CLPPVACUXMD  073H TELNYX LLC 246      
540-973 0 The Plains VA CLPPVACUXMD  073H TELNYX LLC 246   2022-11-03   
540-973 1 The Plains VA CLPPVA947MD  939H COMMIO, LLC 246   2023-10-02   
540-973 2 The Plains VA CLPPVA947MD  939H COMMIO, LLC 246   2023-10-02   
540-973 3 The Plains VA CLPPVA947MD  939H COMMIO, LLC 246   2023-10-02   
540-973 4 The Plains VA CLPPVA947MD  939H COMMIO, LLC 246   2023-10-02   
540-973 5 The Plains VA CLPPVA947MD  939H COMMIO, LLC 246   2023-10-02   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.