Local Calling Guide

Area code/prefix search

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

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
406-408 A HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-408 0   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2019-11-29   
406-673 A HAYSMTXCRS1  2257 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-673 0   2257 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-673 1   2257 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-673 2   2257 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-673 3   2257 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-673 4   2257 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-673 5   2257 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-673 6   2257 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-673 7   2257 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-673 8   2257 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-673 9   2257 TRIANGLE TEL. COOP. ASSN., INC. 648      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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