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: CLEVOH024MD

<< 1 2

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
440-793 5 Olmsted Falls OH 516C AT&T CORP. 320   2009-10-15   
440-853 0 Painesville OH 516C AT&T CORP. 320   2014-10-02   
440-856 1 Willoughby OH 516C AT&T CORP. 320   2015-02-27   

<< 1 2

Last updated: Sat, 10 Oct 2026 15:24:20 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.