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: THRRMIXTNMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
269-255 A Sturgis MI 543C ONVOY, LLCV - MI 348      
269-322 A Edwardsburg MI 543C ONVOY, LLCV - MI 348      
269-390 A Dowagiac MI 543C ONVOY, LLCV - MI 348      
269-402 A Glenn MI 543C ONVOY, LLCV - MI 348      

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.