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: AURRILARDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
630-256 A Aurora IL 9329 ILLINOIS BELL TEL CO 358      
630-264 A Aurora IL 9329 ILLINOIS BELL TEL CO 358      
630-801 A Aurora IL 9329 ILLINOIS BELL TEL CO 358      
630-844 A Aurora IL 9329 ILLINOIS BELL TEL CO 358      
630-859 A Aurora IL 9329 ILLINOIS BELL TEL CO 358      
630-892 A Aurora IL 9329 ILLINOIS BELL TEL CO 358      
630-896 A Aurora IL 9329 ILLINOIS BELL TEL CO 358      
630-897 A Aurora IL 9329 ILLINOIS BELL TEL CO 358      
630-906 A Aurora IL 9329 ILLINOIS BELL TEL CO 358      
630-966 A Aurora IL 9329 ILLINOIS BELL TEL CO 358      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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