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: STVLMTMARS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
406-777 A Stevensville MT 9636 QWEST CORPORATION 648      
406-777 0 Stevensville MT 9636 QWEST CORPORATION 648      
406-777 1 Stevensville MT 9636 QWEST CORPORATION 648      
406-777 2 Stevensville MT 9636 QWEST CORPORATION 648      
406-777 3 Stevensville MT 9636 QWEST CORPORATION 648      
406-777 4 Stevensville MT 9636 QWEST CORPORATION 648      
406-777 5 Stevensville MT 9636 QWEST CORPORATION 648      
406-777 7 Stevensville MT 9636 QWEST CORPORATION 648      
406-777 9 Stevensville MT 9636 QWEST CORPORATION 648      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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