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: 310

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
406-310 A Butte MT BUTTMTAQ2MD  7870 BLACKFOOT COMMUNICATIONS, INC. - MT 648      
406-310 1 Butte MT   6529 T-MOBILE USA, INC. 648      
406-310 2 Butte MT   6529 T-MOBILE USA, INC. 648      
406-310 3 Butte MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-310 4 Butte MT BUTTMTAQ2MD  7870 BLACKFOOT COMMUNICATIONS, INC. - MT 648      
406-310 5 Butte MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-310 6 Butte MT HLNAMTMAWMD  6529 T-MOBILE USA, INC. 648      
406-310 7 Butte MT HLNAMTMAWMD  5562 METROPCS, INC. 648      
406-310 8 Butte MT HLNAMTMAWMD  5562 METROPCS, INC. 648      
406-310 9 Butte MT HLNAMTMAWMD  6529 T-MOBILE USA, INC. 648      

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

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