Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 406 [Rate centres in NPA 406] [Dial plan for NPA 406]

NXX: 506

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
406-506 A Billings MT BLNGMT93BMD  321J HD CARRIER LLC 650      
406-506 0 Billings MT BLNGMT93BMD  994E BANDWIDTH.COM CLEC, LLC - MT 650      
406-506 1 Billings MT BLNGMT93BMD  321J HD CARRIER LLC 650      
406-506 2 Billings MT BLNGMT93BMD  321J HD CARRIER LLC 650      
406-506 3 Billings MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650      
406-506 4 Billings MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650      
406-506 5 Billings MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650      
406-506 6 Billings MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650      
406-506 7 Billings MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650      
406-506 8 Billings MT BLNGMTMAXMD  6529 T-MOBILE USA, INC. 650      
406-506 9 Billings MT BLNGMT93BMD  321J HD CARRIER LLC 650      

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

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