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: 940 [Rate centres in NPA 940] [Dial plan for NPA 940]

NXX: 571

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
940-571 A Benjamin TX SYMRTXXA0MD  0132 AMA COMM., LLC DBA AMA*TECHTEL COMMUNICATIONS-TX 548      

Last updated: Sun, 18 Aug 2024 23:40:19 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.