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.

Dubois, ID

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
208-374 A DUBSIDXCDS0  2227 MUD LAKE TELEPHONE COOPERATIVE ASSOCIATION, INC. 652      
208-560 A DUBSIDXCDS1  2227 MUD LAKE TELEPHONE COOPERATIVE ASSOCIATION, INC. 652      
208-560 0   145J TERRA NOVA TELECOM INC. 652   2025-05-21   
208-560 1 DUBSIDXCDS1  2227 MUD LAKE TELEPHONE COOPERATIVE ASSOCIATION, INC. 652   2019-08-28   

Last updated: Fri, 25 Jul 2025 03:21:23 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.