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: 575 [Rate centres in NPA 575] [Dial plan for NPA 575]

NXX: 940

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
575-940 A Capitan NM   123F BANDWIDTH.COM CLEC, LLC - NM 664      
575-940 0 Capitan NM   123F BANDWIDTH.COM CLEC, LLC - NM 664      
575-940 1 Capitan NM   123F BANDWIDTH.COM CLEC, LLC - NM 664      
575-940 4 Capitan NM   206F ONVOY, LLC NM 664   2020-12-20   
575-940 5 Capitan NM   206F ONVOY, LLC NM 664   2020-03-07   
575-940 6 Capitan NM   206F ONVOY, LLC NM 664   2020-12-20   

Last updated: Sat, 31 Oct 2020 19:28:10 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.