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: 704

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
779-704 A McHenry IL EGVGILIFDS0  7196 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 358      
779-704 0 McHenry IL SCBGILRRGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2014-06-12   
779-704 1 McHenry IL SCBGILRRGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2014-09-26   
779-704 2 McHenry IL CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358   2014-08-22   
779-704 3 McHenry IL EGVGILIFDS0  7196 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 358   2013-12-29   
779-704 4 McHenry IL CHCGIL24DS6  224C ONVOY, LLC 358   2014-04-13   
779-704 5 McHenry IL CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358   2016-03-31   
779-704 6 McHenry IL CHCGIL24DS6  224C ONVOY, LLC 358   2016-03-14   
779-704 7 McHenry IL CHCGIL24DS6  224C ONVOY, LLC 358   2016-03-14   
779-704 8 McHenry IL SCBGILRRGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2014-11-22   
779-704 9 McHenry IL SCBGILRRGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2014-11-22   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.