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: 406 [Rate centres in NPA 406] [Dial plan for NPA 406]

NXX: 635

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
406-635 A Terry (Mid-Rivers) MT TRRYMTAARS0  2246 MID-RIVERS TEL. COOP., INC. 650      
406-635 0 Terry (Mid-Rivers) MT BLNGMT933MD  073H TELNYX LLC 650   2018-07-25   
406-635 1 Terry (Mid-Rivers) MT BLNGMT93DS0  588H AIRUS, INC. - MT 650   2021-02-18   
406-635 2 Terry (Mid-Rivers) MT   145J TERRA NOVA TELECOM INC. 650   2021-11-04   
406-635 3 Terry (Mid-Rivers) MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2021-07-08   
406-635 4 Terry (Mid-Rivers) MT TRRYMTAARS0  2246 MID-RIVERS TEL. COOP., INC. 650      
406-635 5 Terry (Mid-Rivers) MT TRRYMTAARS0  2246 MID-RIVERS TEL. COOP., INC. 650      
406-635 6 Terry (Mid-Rivers) MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2018-12-17   
406-635 7 Terry (Mid-Rivers) MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2021-03-07   
406-635 8 Terry (Mid-Rivers) MT BLNGMT93DS0  588H AIRUS, INC. - MT 650   2018-03-02   
406-635 9 Terry (Mid-Rivers) MT TRRYMTAARS0  2246 MID-RIVERS TEL. COOP., 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.