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: CHCGILNEXJX

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
872-829 3 Chicago Zone 04-Humboldt IL 318J COMCAST IP PHONE, LLC 358      
872-888 8 Chicago Zone 02-Edgewater IL 318J COMCAST IP PHONE, LLC 358      

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

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