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: TMPRMIXGDS0

Remotes:

Switch Switch name Switch type
DUNDMIXGRS0  DUNDEE  GTR 
ERIEMIXGRS0  ERIE  GTR 
IDA MIXHRS0  IDA  GTR 
LSPNMIXGRL0  LOST PENINSULA  GTR 
MYBEMIXHRS0  MAYBEE  GTR 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
734-847 A Temperance MI 0695 FRONTIER NORTH, INC. - MI 340      
734-850 A Temperance MI 0695 FRONTIER NORTH, INC. - MI 340      
734-850 0 Temperance MI 0695 FRONTIER NORTH, INC. - MI 340      
734-850 1 Temperance MI 0695 FRONTIER NORTH, INC. - MI 340      
734-850 2 Temperance MI 0695 FRONTIER NORTH, INC. - MI 340      
734-850 4 Temperance MI 0695 FRONTIER NORTH, INC. - MI 340      
734-850 6 Temperance MI 0695 FRONTIER NORTH, INC. - MI 340      
734-850 8 Temperance MI 0695 FRONTIER NORTH, INC. - MI 340      
734-850 9 Temperance MI 0695 FRONTIER NORTH, INC. - MI 340      

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

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