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: CLMXMIXIDS2

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
269-250 A Kalamazoo MI 8331 CLIMAX TELEPHONE COMPANY 348   2008-04-17   
269-389 A Kalamazoo MI 8331 CLIMAX TELEPHONE COMPANY 348   2011-01-28   
269-438 A Climax MI 0688 CLIMAX TELEPHONE CO. 348      

Last updated: Sat, 09 Mar 2019 02:16:03 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.