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: DYTNOH014MD

<< 1 2 3 4 5 6

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
937-991 3 Dayton OH 4863 LEVEL 3 COMMUNICATIONS, LLC - OH 328   2016-08-12   
937-999 2 Dayton OH 4863 LEVEL 3 COMMUNICATIONS, LLC - OH 328   2011-04-01   
937-999 3 Dayton OH 4863 LEVEL 3 COMMUNICATIONS, LLC - OH 328   2011-04-01   

<< 1 2 3 4 5 6

Last updated: Tue, 30 May 2023 01:08:39 UTC

Sponsored by: VoiceMeUp - Corporate VoIP Services

Like this site? We accept donations via PayPal.