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.
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Switch: BLNGMT934MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
307-888 1 Old Faithful WY 939H COMMIO, LLC 650      
406-359 5 Glendive MT 939H COMMIO, LLC 650      
406-416 8 Forsyth MT 939H COMMIO, LLC 650      
406-530 0 Laurel MT 939H COMMIO, LLC 650      
406-613 0 Bozeman MT 939H COMMIO, LLC 650      
406-703 8 Columbus MT 939H COMMIO, LLC 650      
406-703 9 Columbus MT 939H COMMIO, LLC 650      
406-851 0 Miles City MT 939H COMMIO, LLC 650      
406-894 A Billings MT 939H COMMIO, LLC 650      
406-894 1 Billings MT 939H COMMIO, LLC 650      
406-894 4 Billings MT 939H COMMIO, LLC 650      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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