Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
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Poplar, MT

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
406-768 A PPLRMTXCDS0  2247 NEMONT TEL COOP INC 650      
406-768 2   2247 NEMONT TEL COOP INC 650      
406-768 3   2247 NEMONT TEL COOP INC 650      
406-768 5   2247 NEMONT TEL COOP INC 650      
406-768 6   2247 NEMONT TEL COOP INC 650      
406-768 7   443B SAGEBRUSH CELLULAR, INC. 650      
406-768 8   443B SAGEBRUSH CELLULAR, INC. 650      
406-768 9   2247 NEMONT TEL COOP INC 650      

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

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