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: CHCGILWUKMD

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
872-285 2 Chicago Zone 08-Portsmouth IL 939H COMMIO, LLC 358   2021-09-14   
872-285 9 Chicago Zone 08-Portsmouth IL 939H COMMIO, LLC 358   2021-09-14   
872-324 A Chicago Zone 09-South Chicago IL 939H COMMIO, LLC 358      
872-324 0 Chicago Zone 09-South Chicago IL 939H COMMIO, LLC 358   2023-01-13   
872-365 A Chicago Zone 02-Edgewater IL 939H COMMIO, LLC 358      
872-365 2 Chicago Zone 02-Edgewater IL 939H COMMIO, LLC 358   2017-06-23   

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

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