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.

Switch: BLNGMTWEBMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
406-200 A Billings MT 771G TELEPORT COMMUNICATIONS AMERICA MT - LLC 650      
406-200 6 Billings MT 771G TELEPORT COMMUNICATIONS AMERICA MT - LLC 650      
406-281 A Billings MT 771G TELEPORT COMMUNICATIONS AMERICA MT - LLC 650      
406-281 9 Billings MT 771G TELEPORT COMMUNICATIONS AMERICA MT - LLC 650      
406-333 5 Livingston MT 771G TELEPORT COMMUNICATIONS AMERICA MT - LLC 650      
406-413 6 Billings MT 771G TELEPORT COMMUNICATIONS AMERICA MT - LLC 650      
406-445 8 Red Lodge MT 771G TELEPORT COMMUNICATIONS AMERICA MT - LLC 650      
406-577 5 Bozeman MT 771G TELEPORT COMMUNICATIONS AMERICA MT - LLC 650      
406-602 6 Bozeman MT 771G TELEPORT COMMUNICATIONS AMERICA MT - LLC 650      
406-616 5 Three Forks MT 771G TELEPORT COMMUNICATIONS AMERICA MT - LLC 650      
406-638 6 Hardin MT 771G TELEPORT COMMUNICATIONS AMERICA MT - LLC 650      
406-743 4 Laurel MT 771G TELEPORT COMMUNICATIONS AMERICA MT - LLC 650      
406-748 8 Colstrip MT 771G TELEPORT COMMUNICATIONS AMERICA MT - LLC 650      
406-765 6 Plentywood MT 771G TELEPORT COMMUNICATIONS AMERICA MT - LLC 650      
406-831 4 Billings MT 771G TELEPORT COMMUNICATIONS AMERICA MT - LLC 650      
406-919 8 Belgrade MT 771G TELEPORT COMMUNICATIONS AMERICA MT - LLC 650      
406-943 5 Sidney MT 771G TELEPORT COMMUNICATIONS AMERICA MT - LLC 650      
406-944 6 Miles City MT 771G TELEPORT COMMUNICATIONS AMERICA MT - LLC 650      

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

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