Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 872 [Rate centres in NPA 872] [Dial plan for NPA 872]

NXX: 391

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
872-391 A Chicago Zone 06-Kedzie IL   224C ONVOY, LLC 358   2026-03-20   
872-391 0 Chicago Zone 06-Kedzie IL   224C ONVOY, LLC 358   2026-03-20   
872-391 1 Chicago Zone 06-Kedzie IL   224C ONVOY, LLC 358   2026-03-26   

Last updated: Wed, 04 Mar 2026 03:00:52 UTC

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