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: 308 [Rate centres in NPA 308] [Dial plan for NPA 308]

NXX: 831

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
308-831 A Naponee NE GDISNENWJMD  549E ONVOY, LLC - NE 646      
308-831 2 Naponee NE GDISNENWJMD  549E ONVOY, LLC - NE 646   2021-12-05   
308-831 3 Naponee NE GDISNENWJMD  549E ONVOY, LLC - NE 646   2021-07-06   

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

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.