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.

Wibaux (Mid-Rivers), MT

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
406-796 A WIBXMTAARS0  7830 MID-RIVERS TELEPHONE COOPERATIVE, INC. 650      
406-796 0 BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2021-03-07   
406-796 1 BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2019-09-15   
406-796 2 WIBXMTAARS0  7830 MID-RIVERS TELEPHONE COOPERATIVE, INC. 650      
406-796 3 BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2019-09-15   
406-796 4 BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2021-07-08   
406-796 7 BLNGMT939MD  145J TERRA NOVA TELECOM INC. 650   2023-04-27   
406-796 9 WIBXMTAARS0  7830 MID-RIVERS TELEPHONE COOPERATIVE, INC. 650      

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.