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: LBRDILLMDS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
630-424 A Lombard IL 9329 AMERITECH ILLINOIS 358      
630-458 A Lombard IL 9329 AMERITECH ILLINOIS 358      
630-495 A Lombard IL 9329 AMERITECH ILLINOIS 358      
630-543 A Lombard IL 9329 AMERITECH ILLINOIS 358      
630-620 A Lombard IL 9329 AMERITECH ILLINOIS 358      
630-627 A Lombard IL 9329 AMERITECH ILLINOIS 358      
630-628 A Lombard IL 9329 AMERITECH ILLINOIS 358      
630-629 A Lombard IL 9329 AMERITECH ILLINOIS 358      
630-652 A Lombard IL 9329 AMERITECH ILLINOIS 358      
630-691 A Lombard IL 9329 AMERITECH ILLINOIS 358      
630-693 A Lombard IL 9329 AMERITECH ILLINOIS 358      
630-705 A Lombard IL 9329 AMERITECH ILLINOIS 358      
630-889 A Lombard IL 9329 AMERITECH ILLINOIS 358      
630-932 A Lombard IL 9329 AMERITECH ILLINOIS 358      
630-953 A Lombard IL 9329 AMERITECH ILLINOIS 358      

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

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