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.

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
317-794 9 Indianapolis IN 321J HD CARRIER LLC 336   2026-05-21   
463-239 A Indianapolis IN 321J HD CARRIER LLC 336      
463-239 9 Indianapolis IN 321J HD CARRIER LLC 336   2020-10-09   
463-329 3 Carmel IN 321J HD CARRIER LLC 336   2026-04-09   
463-329 4 Carmel IN 321J HD CARRIER LLC 336   2026-04-09   
463-335 4 Indianapolis IN 321J HD CARRIER LLC 336   2026-05-21   
463-426 1 Indianapolis IN 321J HD CARRIER LLC 336   2021-08-20   
765-839 5 Lafayette IN 321J HD CARRIER LLC 336   2026-04-10   
765-839 6 Lafayette IN 321J HD CARRIER LLC 336   2026-04-10   

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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