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: OKBRILOADS0

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
630-706 5 Oak Brook IL 9329 ILLINOIS BELL TEL CO 358   2000-09-12   
630-722 A Oak Brook IL 9329 ILLINOIS BELL TEL CO 358      
630-891 4 Hinsdale IL 9329 ILLINOIS BELL TEL CO 358   1999-12-30   
630-891 5 Hinsdale IL 9329 ILLINOIS BELL TEL CO 358   1999-11-09   
630-891 6 Hinsdale IL 9329 ILLINOIS BELL TEL CO 358   1999-11-09   
630-891 7 Hinsdale IL 9329 ILLINOIS BELL TEL CO 358   2000-04-13   
630-928 A Oak Brook IL 9329 ILLINOIS BELL TEL CO 358      
630-954 A Oak Brook IL 9329 ILLINOIS BELL TEL CO 358      
630-954 0 Oak Brook IL 9329 ILLINOIS BELL TEL CO 358      
630-954 1 Oak Brook IL 9329 ILLINOIS BELL TEL CO 358      
630-954 2 Oak Brook IL 9329 ILLINOIS BELL TEL CO 358      
630-954 3 Oak Brook IL 9329 ILLINOIS BELL TEL CO 358      
630-954 4 Oak Brook IL 9329 ILLINOIS BELL TEL CO 358      
630-954 5 Oak Brook IL 9329 ILLINOIS BELL TEL CO 358      
630-954 6 Oak Brook IL 9329 ILLINOIS BELL TEL CO 358      
630-954 7 Oak Brook IL 9329 ILLINOIS BELL TEL CO 358      
630-954 8 Oak Brook IL 9329 ILLINOIS BELL TEL CO 358      
630-990 A Oak Brook IL 9329 ILLINOIS BELL TEL CO 358      

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Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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