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.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Stockett, MT

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
406-736 A FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-736 0 FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-736 1 FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-736 2 GRFLMTMA69Z  490J DISH WIRELESS, LLC 648   2024-04-28   
406-736 4 FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-736 5 FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-736 6 FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-736 7 FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-736 8 FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-736 9 FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.