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.

NPA: 872 [Rate centres in NPA 872] [Dial plan for NPA 872]

NXX: 221

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
872-221 A Chicago Zone 09-South Chicago IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358      
872-221 0 Chicago Zone 09-South Chicago IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2011-06-06   
872-221 1 Chicago Zone 09-South Chicago IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2011-06-06   
872-221 2 Chicago Zone 09-South Chicago IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2011-06-06   
872-221 3 Chicago Zone 09-South Chicago IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2011-06-06   
872-221 4 Chicago Zone 09-South Chicago IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2010-10-03   
872-221 5 Chicago Zone 09-South Chicago IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2011-01-22   
872-221 6 Chicago Zone 09-South Chicago IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2011-12-24   
872-221 7 Chicago Zone 09-South Chicago IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2012-03-22   
872-221 8 Chicago Zone 09-South Chicago IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2012-04-26   
872-221 9 Chicago Zone 09-South Chicago IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2013-06-09   

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.