Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Big Sandy, MT

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
406-378 A HAVRMTXCDS0  2257 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-378 0   2257 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-378 1   2257 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-378 2   2257 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-378 3   2257 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-378 4   2257 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-378 5   2257 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-378 6   2257 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-378 7   2257 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-378 8   9415 LEVEL 3 COMMUNICATIONS, LLC - MT 648      
406-378 9   2257 TRIANGLE TEL. COOP. ASSN., INC. 648      

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

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