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.

Woodstock, IL

<< 1 2 3 4 5 6

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
815-880 4 CHCGIL24DS6  224C ONVOY, LLC 358   2014-12-14   
815-880 5 CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358   2014-10-27   
815-880 6 CHCGIL24DS6  224C ONVOY, LLC 358   2014-12-14   
815-880 7 EGVGILIFDS0  7196 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 358   2005-08-26   
815-880 8 EGVGILIFDS0  7196 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 358   2005-08-26   
815-880 9 EGVGILIFDS0  7196 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 358   2005-08-26   

<< 1 2 3 4 5 6

Last updated: Tue, 01 Sep 2026 00:40:05 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.