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: MSKGMIXLDS0

Remotes:

Switch Switch name Switch type
HLTNMIXGRS0  HOLTON  GTR 
HSPRMIXHRS0  HESPERIA  GTR 
MSKGMIXQRS0  MUSKEGON DALTON  GTR 
TNLKMIXGRS0  TWIN LAKE  GTR 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
231-719 A Muskegon MI 0695 FRONTIER NORTH, INC. - MI 348      
231-719 0 Muskegon MI 0695 FRONTIER NORTH, INC. - MI 348      
231-719 1 Muskegon MI 0695 FRONTIER NORTH, INC. - MI 348      
231-719 2 Muskegon MI 0695 FRONTIER NORTH, INC. - MI 348      
231-719 3 Muskegon MI 0695 FRONTIER NORTH, INC. - MI 348      
231-719 4 Muskegon MI 0695 FRONTIER NORTH, INC. - MI 348      
231-719 8 Muskegon MI 0695 FRONTIER NORTH, INC. - MI 348      
231-719 9 Muskegon MI 0695 FRONTIER NORTH, INC. - MI 348      
231-744 A Muskegon MI 0695 FRONTIER NORTH, INC. - MI 348      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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