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: IPLSIN01XDZ

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
317-978 A Charlottesville IN 508J CENTURYLINK COMMUNICATIONS, LLC 336      
317-991 A Indianapolis IN 508J CENTURYLINK COMMUNICATIONS, LLC 336      
574-701 A Galveston IN 508J CENTURYLINK COMMUNICATIONS, LLC 336      
765-508 A Elwood IN 508J CENTURYLINK COMMUNICATIONS, LLC 336      
765-636 A Veedersburg IN 508J CENTURYLINK COMMUNICATIONS, LLC 336      
765-919 A Peru IN 508J CENTURYLINK COMMUNICATIONS, LLC 336      

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

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