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: AURRILAEDS0

Remotes:

Switch Switch name Switch type
AURRILAWRS0  AURORA WEST  5ER 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
630-236 A Aurora East IL 9329 ILLINOIS BELL TEL CO 358      
630-375 A Aurora East IL 9329 ILLINOIS BELL TEL CO 358      
630-499 A Aurora East IL 9329 ILLINOIS BELL TEL CO 358      
630-585 A Aurora East IL 9329 ILLINOIS BELL TEL CO 358      
630-692 A Aurora East IL 9329 ILLINOIS BELL TEL CO 358      
630-820 A Aurora East IL 9329 ILLINOIS BELL TEL CO 358      
630-851 A Aurora East IL 9329 ILLINOIS BELL TEL CO 358      
630-862 A Aurora East IL 9329 ILLINOIS BELL TEL CO 358      
630-898 A Aurora East IL 9329 ILLINOIS BELL TEL CO 358      
630-978 A Aurora East IL 9329 ILLINOIS BELL TEL CO 358      

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

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