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.
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Switch: CHCGILMFCM3

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
224-308 A Round Lake IL 6529 T-MOBILE USA, INC. 358   2012-06-30   
773-225 A Chicago Zone 03-Kildare IL 6529 T-MOBILE USA, INC. 358   2006-05-06   
773-414 A Chicago Zone 03-Kildare IL 6529 T-MOBILE USA, INC. 358   2004-11-01   
773-501 A Chicago Zone 03-Newcastle IL 6529 T-MOBILE USA, INC. 358      
773-510 A Chicago Zone 03-Newcastle IL 6529 T-MOBILE USA, INC. 358      
773-540 A Chicago Zone 03-Kildare IL 6529 T-MOBILE USA, INC. 358   2005-02-21   
773-543 A Chicago Zone 04-Humboldt IL 6529 T-MOBILE USA, INC. 358   2007-12-10   
773-592 A Chicago Zone 03-Newcastle IL 6529 T-MOBILE USA, INC. 358      
773-698 A Chicago Zone 04-Humboldt IL 6529 T-MOBILE USA, INC. 358   2007-07-28   
773-704 A Chicago Zone 03-Newcastle IL 6529 T-MOBILE USA, INC. 358      
773-732 A Chicago Zone 03-Newcastle IL 6529 T-MOBILE USA, INC. 358      
773-742 A Chicago Zone 03-Newcastle IL 6529 T-MOBILE USA, INC. 358      
773-747 A Chicago Zone 04-Humboldt IL 6529 T-MOBILE USA, INC. 358   2008-02-21   
773-809 A Chicago Zone 03-Kildare IL 6529 T-MOBILE USA, INC. 358   2008-10-23   
773-814 A Chicago Zone 03-Newcastle IL 6529 T-MOBILE USA, INC. 358      
773-817 A Chicago Zone 03-Newcastle IL 6529 T-MOBILE USA, INC. 358      
773-837 A Chicago Zone 04-Humboldt IL 6529 T-MOBILE USA, INC. 358      
773-877 A Chicago Zone 03-Kildare IL 6529 T-MOBILE USA, INC. 358   2006-09-04   
773-934 A Chicago Zone 03-Newcastle IL 6529 T-MOBILE USA, INC. 358      
773-968 A Chicago Zone 03-Newcastle IL 6529 T-MOBILE USA, INC. 358      
773-969 A Chicago Zone 04-Humboldt IL 6529 T-MOBILE USA, INC. 358   2008-02-21   
872-233 A Chicago Zone 04-Humboldt IL 6529 T-MOBILE USA, INC. 358   2011-08-11   

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

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