Local Calling Guide

Area code/prefix search

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

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
406-385 A WSBYMTXCRS1  2247 NEMONT TEL COOP INC 650      
406-385 2 WSBYMTXCRS1  2247 NEMONT TEL COOP INC 650      
406-385 7 GLSGMTXC1MD  443B SAGEBRUSH CELLULAR, INC. 650      

Last updated: Wed, 04 Mar 2026 03:00:52 UTC

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