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: PRTGWIXADS0

Remotes:

Switch Switch name Switch type
MTLLWIXARS0  MONTELLO  GTR 
PDVLWIXARS0  PARDEEVILLE  GTR 
WSFDWIXARS0  WESTFIELD  GTR 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
608-742 A Portage WI 0886 FRONTIER NORTH INC. - WI 354      
608-745 A Portage WI 0886 FRONTIER NORTH INC. - WI 354      
608-745 0 Portage WI 0886 FRONTIER NORTH INC. - WI 354      
608-745 1 Portage WI 0886 FRONTIER NORTH INC. - WI 354      
608-745 3 Portage WI 0886 FRONTIER NORTH INC. - WI 354      
608-745 4 Portage WI 0886 FRONTIER NORTH INC. - WI 354      
608-745 5 Portage WI 0886 FRONTIER NORTH INC. - WI 354      
608-745 6 Portage WI 0886 FRONTIER NORTH INC. - WI 354      

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

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