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: 205

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
779-205 A Joliet IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
779-205 0 Joliet IL CHCGILWUDS4  063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 358   2012-07-17   
779-205 1 Joliet IL CHCGIL24DS6  224C ONVOY, LLC 358   2022-09-06   
779-205 2 Joliet IL CHCGILDTKMD  5447 ACCESS ONE, INC. - IL 358   2012-12-06   
779-205 3 Joliet IL CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358   2013-06-26   
779-205 4 Joliet IL CHCGIL24DS6  224C ONVOY, LLC 358   2012-10-01   
779-205 5 Joliet IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2013-01-06   
779-205 6 Joliet IL CHCGIL24DS6  224C ONVOY, LLC 358   2013-12-10   
779-205 7 Joliet IL EGVGILIFDS0  7196 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 358   2012-12-06   
779-205 8 Joliet IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2012-07-20   
779-205 9 Joliet IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2012-07-14   

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.