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.

NPA: 779 [Rate centres in NPA 779] [Dial plan for NPA 779]

NXX: 803

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
779-803 A New Lenox IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358      
779-803 0 New Lenox IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2013-10-13   
779-803 1 New Lenox IL   224C ONVOY, LLC 358   2014-09-07   
779-803 2 New Lenox IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2015-05-21   
779-803 3 New Lenox IL   318J COMCAST IP PHONE, LLC 358   2014-04-17   
779-803 4 New Lenox IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2015-05-21   
779-803 5 New Lenox IL   318J COMCAST IP PHONE, LLC 358   2017-04-18   
779-803 6 New Lenox IL   073H TELNYX LLC 358   2018-07-13   
779-803 7 New Lenox IL   508J CENTURYLINK COMMUNICATIONS, LLC 358   2014-02-24   
779-803 8 New Lenox IL   224C ONVOY, LLC 358   2016-04-08   
779-803 9 New Lenox IL   224C ONVOY, LLC 358   2016-04-08   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.