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: 244

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
779-244 A McHenry IL SCBGILRRGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
779-244 0 McHenry IL   073H TELNYX LLC 358   2018-07-13   
779-244 1 McHenry IL   318J COMCAST IP PHONE, LLC 358   2019-06-07   
779-244 2 McHenry IL   6529 T-MOBILE USA, INC. 358   2017-11-22   
779-244 3 McHenry IL   318J COMCAST IP PHONE, LLC 358   2017-12-19   
779-244 4 McHenry IL   224C ONVOY, LLC 358   2019-07-07   
779-244 5 McHenry IL   318J COMCAST IP PHONE, LLC 358   2019-04-19   
779-244 6 McHenry IL   224C ONVOY, LLC 358   2019-07-07   
779-244 7 McHenry IL   224C ONVOY, LLC 358   2019-07-07   
779-244 8 McHenry IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2018-04-21   
779-244 9 McHenry IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2017-11-19   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.