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: GLELILGEDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
630-469 A Glen Ellyn IL 9329 AMERITECH ILLINOIS 358      
630-534 4 Glen Ellyn IL 9329 AMERITECH ILLINOIS 358   2000-08-28   
630-534 6 Glen Ellyn IL 9329 AMERITECH ILLINOIS 358   2001-10-14   
630-534 7 Glen Ellyn IL 9329 AMERITECH ILLINOIS 358   2001-10-14   
630-534 8 Glen Ellyn IL 9329 AMERITECH ILLINOIS 358   2001-10-14   
630-545 A Glen Ellyn IL 9329 AMERITECH ILLINOIS 358      
630-790 A Glen Ellyn IL 9329 AMERITECH ILLINOIS 358      
630-858 A Glen Ellyn IL 9329 AMERITECH ILLINOIS 358      
630-942 A Glen Ellyn IL 9329 AMERITECH ILLINOIS 358      

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

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