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:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
779-231 A Joliet IL   7196 MCI WORLDCOM COMMUNICATIONS, INC. - IL 358      
779-231 0 Joliet IL   7196 MCI WORLDCOM COMMUNICATIONS, INC. - IL 358   2016-02-04   
779-231 1 Joliet IL   7196 MCI WORLDCOM COMMUNICATIONS, INC. - IL 358   2016-02-04   
779-231 2 Joliet IL   7196 MCI WORLDCOM COMMUNICATIONS, INC. - IL 358   2016-02-04   
779-231 3 Joliet IL   7196 MCI WORLDCOM COMMUNICATIONS, INC. - IL 358   2016-02-04   
779-231 4 Joliet IL   7196 MCI WORLDCOM COMMUNICATIONS, INC. - IL 358   2016-02-04   
779-231 5 Joliet IL   7196 MCI WORLDCOM COMMUNICATIONS, INC. - IL 358   2016-02-04   
779-231 6 Joliet IL   7196 MCI WORLDCOM COMMUNICATIONS, INC. - IL 358   2016-02-04   
779-231 7 Joliet IL   7196 MCI WORLDCOM COMMUNICATIONS, INC. - IL 358   2016-02-04   
779-231 8 Joliet IL   7196 MCI WORLDCOM COMMUNICATIONS, INC. - IL 358   2016-02-04   
779-231 9 Joliet IL   7196 MCI WORLDCOM COMMUNICATIONS, INC. - IL 358   2016-02-04   

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.