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: CHCGIL24KMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
312-584 A Chicago Zone 01-Calumet IL 597F VOIP INNOVATIONS, LLC 358      
312-584 0 Chicago Zone 01-Calumet IL 597F VOIP INNOVATIONS, LLC 358   2018-09-28   
773-819 7 Chicago Zone 07-Stewart IL 597F VOIP INNOVATIONS, LLC 358   2019-02-22   
872-213 8 Chicago Zone 02-Edgewater IL 597F VOIP INNOVATIONS, LLC 358   2019-02-16   
872-245 A Chicago Zone 04-Humboldt IL 597F VOIP INNOVATIONS, LLC 358      
872-245 1 Chicago Zone 04-Humboldt IL 597F VOIP INNOVATIONS, LLC 358   2019-03-25   
872-266 5 Chicago Zone 08-Portsmouth IL 597F VOIP INNOVATIONS, LLC 358   2019-02-18   

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

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