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: CMCYILCCDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
708-418 A Lansing IL 9329 AMERITECH ILLINOIS 358      
708-474 A Lansing IL 9329 AMERITECH ILLINOIS 358      
708-730 A Calumet City IL 9329 AMERITECH ILLINOIS 358      
708-730 0 Calumet City IL 9329 AMERITECH ILLINOIS 358      
708-730 1 Calumet City IL 9329 AMERITECH ILLINOIS 358      
708-730 5 Calumet City IL 9329 AMERITECH ILLINOIS 358      
708-730 8 Calumet City IL 9329 AMERITECH ILLINOIS 358      
708-730 9 Calumet City IL 9329 AMERITECH ILLINOIS 358      
708-832 A Calumet City IL 9329 AMERITECH ILLINOIS 358      
708-832 0 Calumet City IL 9329 AMERITECH ILLINOIS 358      
708-832 1 Calumet City IL 9329 AMERITECH ILLINOIS 358      
708-832 2 Calumet City IL 9329 AMERITECH ILLINOIS 358      
708-832 3 Calumet City IL 9329 AMERITECH ILLINOIS 358      
708-832 4 Calumet City IL 9329 AMERITECH ILLINOIS 358      
708-832 9 Calumet City IL 9329 AMERITECH ILLINOIS 358      
708-862 A Calumet City IL 9329 AMERITECH ILLINOIS 358      
708-868 A Calumet City IL 9329 AMERITECH ILLINOIS 358      
708-889 A Lansing IL 9329 AMERITECH ILLINOIS 358      
708-889 0 Lansing IL 9329 AMERITECH ILLINOIS 358      
708-889 1 Lansing IL 9329 AMERITECH ILLINOIS 358      
708-889 2 Lansing IL 9329 AMERITECH ILLINOIS 358      
708-889 9 Lansing IL 9329 AMERITECH ILLINOIS 358      
708-891 A Calumet City IL 9329 AMERITECH ILLINOIS 358      
708-895 A Lansing IL 9329 AMERITECH ILLINOIS 358      

Last updated: Tue, 04 May 2021 15:04:27 UTC

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