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: NPVLILNADS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
630-305 A Naperville IL 9329 AMERITECH ILLINOIS 358      
630-355 A Naperville IL 9329 AMERITECH ILLINOIS 358      
630-357 A Naperville IL 9329 AMERITECH ILLINOIS 358      
630-369 A Naperville IL 9329 AMERITECH ILLINOIS 358      
630-416 A Naperville IL 9329 AMERITECH ILLINOIS 358      
630-420 A Naperville IL 9329 AMERITECH ILLINOIS 358      
630-428 A Naperville IL 9329 AMERITECH ILLINOIS 358      
630-527 A Naperville IL 9329 AMERITECH ILLINOIS 358      
630-548 A Naperville IL 9329 AMERITECH ILLINOIS 358      
630-579 A Naperville IL 9329 AMERITECH ILLINOIS 358      
630-637 A Naperville IL 9329 AMERITECH ILLINOIS 358      
630-646 A Naperville IL 9329 AMERITECH ILLINOIS 358      
630-717 A Naperville IL 9329 AMERITECH ILLINOIS 358      
630-718 A Naperville IL 9329 AMERITECH ILLINOIS 358      
630-753 A Naperville IL 9329 AMERITECH ILLINOIS 358      
630-778 A Naperville IL 9329 AMERITECH ILLINOIS 358      
630-798 A Naperville IL 9329 AMERITECH ILLINOIS 358      
630-813 A Naperville IL 9329 AMERITECH ILLINOIS 358      
630-848 A Naperville IL 9329 AMERITECH ILLINOIS 358      
630-904 A Naperville IL 9329 AMERITECH ILLINOIS 358      
630-922 A Naperville IL 9329 AMERITECH ILLINOIS 358      
630-961 A Naperville IL 9329 AMERITECH ILLINOIS 358      
630-983 A Naperville IL 9329 AMERITECH ILLINOIS 358      

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

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