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: TRRHIN02SMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
217-686 A Marshall IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 938      
812-638 A Sullivan IN 4803 LEVEL 3 COMMUNICATIONS, LLC - IN 938      
812-645 A Terre Haute IN 4803 LEVEL 3 COMMUNICATIONS, LLC - IN 938      
812-702 A Clay City IN 4803 LEVEL 3 COMMUNICATIONS, LLC - IN 938      
812-710 A Farmersburg IN 4803 LEVEL 3 COMMUNICATIONS, LLC - IN 938      
812-712 A Fairbanks IN 4803 LEVEL 3 COMMUNICATIONS, LLC - IN 938      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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