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: CHCGILLWDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
773-244 A Chicago Zone 04-Lakeview IL 9329 ILLINOIS BELL TEL CO 358      
773-296 A Chicago Zone 04-Lakeview IL 9329 ILLINOIS BELL TEL CO 358      
773-325 A Chicago Zone 04-Lakeview IL 9329 ILLINOIS BELL TEL CO 358      
773-388 A Chicago Zone 04-Lakeview IL 9329 ILLINOIS BELL TEL CO 358      
773-404 A Chicago Zone 04-Lakeview IL 9329 ILLINOIS BELL TEL CO 358      
773-477 A Chicago Zone 04-Lakeview IL 9329 ILLINOIS BELL TEL CO 358      
773-528 A Chicago Zone 04-Lakeview IL 9329 ILLINOIS BELL TEL CO 358      
773-529 A Chicago Zone 04-Lakeview IL 9329 ILLINOIS BELL TEL CO 358      
773-665 A Chicago Zone 04-Lakeview IL 9329 ILLINOIS BELL TEL CO 358      
773-697 2 Chicago Zone 04-Lakeview IL 9329 ILLINOIS BELL TEL CO 358   2000-08-15   
773-697 6 Chicago Zone 04-Lakeview IL 9329 ILLINOIS BELL TEL CO 358   2000-08-15   
773-755 A Chicago Zone 04-Lakeview IL 9329 ILLINOIS BELL TEL CO 358      
773-770 7 Chicago Zone 04-Humboldt IL 9329 ILLINOIS BELL TEL CO 358   2002-02-21   
773-832 A Chicago Zone 04-Lakeview IL 9329 ILLINOIS BELL TEL CO 358      
773-832 0 Chicago Zone 04-Lakeview IL 9329 ILLINOIS BELL TEL CO 358      
773-832 1 Chicago Zone 04-Lakeview IL 9329 ILLINOIS BELL TEL CO 358      
773-832 2 Chicago Zone 04-Lakeview IL 9329 ILLINOIS BELL TEL CO 358      
773-832 3 Chicago Zone 04-Lakeview IL 9329 ILLINOIS BELL TEL CO 358      
773-832 4 Chicago Zone 04-Lakeview IL 9329 ILLINOIS BELL TEL CO 358      
773-832 6 Chicago Zone 04-Lakeview IL 9329 ILLINOIS BELL TEL CO 358      
773-832 9 Chicago Zone 04-Lakeview IL 9329 ILLINOIS BELL TEL CO 358      
773-871 A Chicago Zone 04-Lakeview IL 9329 ILLINOIS BELL TEL CO 358      
773-929 A Chicago Zone 04-Lakeview IL 9329 ILLINOIS BELL TEL CO 358      
872-843 A Chicago Zone 04-Humboldt IL 9329 ILLINOIS BELL TEL CO 358      
872-843 0 Chicago Zone 04-Humboldt IL 9329 ILLINOIS BELL TEL CO 358   2016-05-07   
872-843 1 Chicago Zone 04-Humboldt IL 9329 ILLINOIS BELL TEL CO 358   2016-05-07   
872-843 2 Chicago Zone 04-Humboldt IL 9329 ILLINOIS BELL TEL CO 358   2016-05-07   
872-843 3 Chicago Zone 04-Humboldt IL 9329 ILLINOIS BELL TEL CO 358   2016-05-07   
872-843 4 Chicago Zone 04-Humboldt IL 9329 ILLINOIS BELL TEL CO 358   2016-05-07   
872-843 5 Chicago Zone 04-Humboldt IL 9329 ILLINOIS BELL TEL CO 358   2016-05-07   
872-843 6 Chicago Zone 04-Humboldt IL 9329 ILLINOIS BELL TEL CO 358   2016-05-07   
872-843 7 Chicago Zone 04-Humboldt IL 9329 ILLINOIS BELL TEL CO 358   2016-05-07   
872-843 8 Chicago Zone 04-Humboldt IL 9329 ILLINOIS BELL TEL CO 358   2016-05-07   
872-843 9 Chicago Zone 04-Humboldt IL 9329 ILLINOIS BELL TEL CO 358   2016-05-07   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.