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: CTGVWIXADS0

Remotes:

Switch Switch name Switch type
CMBRWIXARS0  CAMBRIDGE  GTR 
DRFDWIXARS1  DEERFIELD  GTR 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
608-839 A Cottage Grove WI 0886 FRONTIER NORTH INC. - WI 354      
608-839 1 Cottage Grove WI 0886 FRONTIER NORTH INC. - WI 354      
608-839 2 Cottage Grove WI 0886 FRONTIER NORTH INC. - WI 354   2008-06-09   
608-839 3 Cottage Grove WI 0886 FRONTIER NORTH INC. - WI 354      
608-839 4 Cottage Grove WI 0886 FRONTIER NORTH INC. - WI 354      
608-839 5 Cottage Grove WI 0886 FRONTIER NORTH INC. - WI 354      
608-839 8 Cottage Grove WI 0886 FRONTIER NORTH INC. - WI 354      
608-839 9 Cottage Grove WI 0886 FRONTIER NORTH INC. - WI 354      

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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