Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Alberton, MT

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
406-722 A ALTNMTXBRS1  2235 BLACKFOOT TEL. COOP., INC. 648      
406-722 0   2235 BLACKFOOT TEL. COOP., INC. 648      
406-722 1   2235 BLACKFOOT TEL. COOP., INC. 648      
406-722 2   2235 BLACKFOOT TEL. COOP., INC. 648      
406-722 3   2235 BLACKFOOT TEL. COOP., INC. 648      
406-722 4   2235 BLACKFOOT TEL. COOP., INC. 648      
406-722 6   2235 BLACKFOOT TEL. COOP., INC. 648      
406-722 7   792K CHARTER IP ENABLED SERVICES, LLC 648   2025-04-28   
406-722 8   2235 BLACKFOOT TEL. COOP., INC. 648      
406-722 9   2235 BLACKFOOT TEL. COOP., INC. 648      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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