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.

Sheldon, IL

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
779-284 A CHCGIL24NMD  495J STRATUS NETWORKS 358      
779-284 0 CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2022-02-11   
779-284 1 CHCGIL24NMD  495J STRATUS NETWORKS 358   2020-10-22   
779-284 8 CHCGILIDXDX  624H ONVOY SPECTRUM, LLC 358   2024-04-28   
815-429 A SHLNILXARS0  1015 FRONTIER NORTH, INC. - IL 358      
815-429 0 CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2014-05-25   
815-429 1 CHCGIL24DS6  224C ONVOY, LLC 358   2019-08-24   
815-429 2 CHCGILDT8MD  508J CENTURYLINK COMMUNICATIONS, LLC 358   2015-06-25   
815-429 3 SHLNILXARS0  1015 FRONTIER NORTH, INC. - IL 358      
815-429 4 SHLNILXARS0  1015 FRONTIER NORTH, INC. - IL 358      
815-429 6 JOLTILJOPMD  593K MCC TELEPHONY LLC 358   2010-06-28   
815-429 7 CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2011-12-24   
815-429 9 CHCGIL245MD  073H TELNYX LLC 358   2020-07-20   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.