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.

Thompson Falls, MT

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
406-242 A MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-242 0 MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-242 5 MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-615 A CHRLMT010MD  986F WESTERN MONTANA COMMUNITYTEL INC. - MT 648      
406-615 2 CHRLMT010MD  986F WESTERN MONTANA COMMUNITYTEL INC. - MT 648      
406-827 A THFLMTXCRS1  2235 BLACKFOOT TEL. COOP., INC. 648      
406-827 0 THFLMTXCRS1  2235 BLACKFOOT TEL. COOP., INC. 648      
406-827 1 THFLMTXCRS1  2235 BLACKFOOT TEL. COOP., INC. 648      
406-827 2 THFLMTXCRS1  2235 BLACKFOOT TEL. COOP., INC. 648      
406-827 3 THFLMTXCRS1  2235 BLACKFOOT TEL. COOP., INC. 648      
406-827 4 THFLMTXCRS1  2235 BLACKFOOT TEL. COOP., INC. 648      
406-827 5 THFLMTXCRS1  2235 BLACKFOOT TEL. COOP., INC. 648      
406-827 6 THFLMTXCRS1  2235 BLACKFOOT TEL. COOP., INC. 648      
406-827 7 THFLMTXCRS1  2235 BLACKFOOT TEL. COOP., INC. 648      
406-827 9 THFLMTXCRS1  2235 BLACKFOOT TEL. COOP., INC. 648      

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.