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: MDSNINALRS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
812-312 9 Batesville IN 4704 SEI DATA, INC. - IN 338   2018-03-25   
812-458 0 Butlerville IN 4704 SEI DATA, INC. - IN 338   2018-03-15   
812-574 A Madison IN 4704 SEI DATA, INC. - IN 338      
812-609 9 Versailles IN 4704 SEI DATA, INC. - IN 338   2018-03-11   
812-819 0 Milan IN 4704 SEI DATA, INC. - IN 338   2018-03-11   
812-979 A North Vernon IN 4704 SEI DATA, INC. - IN 338      
812-979 1 North Vernon IN 4704 SEI DATA, INC. - IN 338   2018-04-15   

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

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