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: WSFDINXADS0

Remotes:

Switch Switch name Switch type
CICRINXARS0  CICERO  GTR 
PKVLINXBRS0  PERKINSVILLE  GTR 
WSFDINXBRS0  WESTFIELD NORTH  GTR 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
317-804 A Westfield IN 0772 FRONTIER NORTH, INC.. - IN 336      
317-867 A Westfield IN 0772 FRONTIER NORTH, INC.. - IN 336      
317-896 A Westfield IN 0772 FRONTIER NORTH, INC.. - IN 336      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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