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: CHCGILWUTMD

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
872-732 6 Chicago Zone 08-Portsmouth IL 516J TON80 COMMUNICATIONS, LLC 358   2021-06-13   
872-835 A Chicago Zone 01-Calumet IL 516J TON80 COMMUNICATIONS, LLC 358      
872-835 0 Chicago Zone 01-Calumet IL 516J TON80 COMMUNICATIONS, LLC 358   2021-07-30   
872-835 1 Chicago Zone 01-Calumet IL 516J TON80 COMMUNICATIONS, LLC 358   2021-07-30   
872-835 2 Chicago Zone 01-Calumet IL 516J TON80 COMMUNICATIONS, LLC 358   2021-07-30   
872-835 3 Chicago Zone 01-Calumet IL 516J TON80 COMMUNICATIONS, LLC 358   2021-07-30   
872-835 4 Chicago Zone 01-Calumet IL 516J TON80 COMMUNICATIONS, LLC 358   2021-07-30   
872-835 5 Chicago Zone 01-Calumet IL 516J TON80 COMMUNICATIONS, LLC 358   2021-07-30   
872-835 6 Chicago Zone 01-Calumet IL 516J TON80 COMMUNICATIONS, LLC 358   2021-07-30   
872-835 7 Chicago Zone 01-Calumet IL 516J TON80 COMMUNICATIONS, LLC 358   2021-07-30   
872-835 8 Chicago Zone 01-Calumet IL 516J TON80 COMMUNICATIONS, LLC 358   2021-07-30   
872-835 9 Chicago Zone 01-Calumet IL 516J TON80 COMMUNICATIONS, LLC 358   2021-07-30   
872-946 4 Chicago Zone 03-Kildare IL 516J TON80 COMMUNICATIONS, LLC 358   2022-04-09   

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

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