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.

NPA: 765 [Rate centres in NPA 765] [Dial plan for NPA 765]

NXX: 645

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
765-645 A Mays IN MAYSINXARS0  0772 FRONTIER NORTH, INC.. - IN 937      
765-645 5 Mays IN   0772 FRONTIER NORTH, INC.. - IN 937      
765-645 6 Mays IN   097D ONVOY, LLC - IN 937   2020-02-06   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.