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.

Switch: DKLBILRSMMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
779-400 A De Kalb IL 259E YMAX COMMUNICATIONS CORP. - IL 364      
779-400 0 De Kalb IL 259E YMAX COMMUNICATIONS CORP. - IL 364   2011-04-03   
779-400 1 De Kalb IL 259E YMAX COMMUNICATIONS CORP. - IL 364   2011-04-03   
779-400 2 De Kalb IL 259E YMAX COMMUNICATIONS CORP. - IL 364   2011-04-03   
779-400 3 De Kalb IL 259E YMAX COMMUNICATIONS CORP. - IL 364   2011-04-03   
779-400 4 De Kalb IL 259E YMAX COMMUNICATIONS CORP. - IL 364   2011-04-03   
815-493 5 Lanark IL 259E YMAX COMMUNICATIONS CORP. - IL 364   2011-04-06   
815-493 7 Lanark IL 259E YMAX COMMUNICATIONS CORP. - IL 364   2011-04-06   
815-989 8 Prophetstown IL 259E YMAX COMMUNICATIONS CORP. - IL 364   2011-04-06   
815-991 7 Sycamore IL 259E YMAX COMMUNICATIONS CORP. - IL 364   2011-04-06   
815-991 8 Sycamore IL 259E YMAX COMMUNICATIONS CORP. - IL 364   2011-04-06   

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

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