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: VLPRIN012MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
219-379 A La Porte IN 4117 FBN INDIANA, INC. - IN 332      
219-510 A Valparaiso IN 4117 FBN INDIANA, INC. - IN 332      
219-814 A Michigan City IN 4117 FBN INDIANA, INC. - IN 332      
574-204 A South Bend IN 4117 FBN INDIANA, INC. - IN 332      
574-584 A Elkhart IN 4117 FBN INDIANA, INC. - IN 332      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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