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: CHCGILDT8MD

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
872-210 3 Chicago Zone 04-Humboldt IL 508J CENTURYLINK COMMUNICATIONS, LLC 358      
872-215 7 Chicago Zone 07-Stewart IL 508J CENTURYLINK COMMUNICATIONS, LLC 358      
872-239 7 Chicago Zone 06-Kedzie IL 508J CENTURYLINK COMMUNICATIONS, LLC 358      
872-256 7 Chicago Zone 05-Austin IL 508J CENTURYLINK COMMUNICATIONS, LLC 358      
872-283 7 Chicago Zone 07-Stewart IL 508J CENTURYLINK COMMUNICATIONS, LLC 358      
872-356 3 Chicago Zone 10-Beverly IL 508J CENTURYLINK COMMUNICATIONS, LLC 358      
872-666 2 Chicago Zone 09-South Chicago IL 508J CENTURYLINK COMMUNICATIONS, LLC 358      

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Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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