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: 388

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
872-388 A Chicago Zone 03-Kildare IL   224C ONVOY, LLC 358   2025-11-15   
872-388 0 Chicago Zone 03-Kildare IL   224C ONVOY, LLC 358   2025-11-15   
872-388 1 Chicago Zone 03-Kildare IL   224C ONVOY, LLC 358   2026-01-11   
872-388 2 Chicago Zone 03-Kildare IL   224C ONVOY, LLC 358   2026-03-26   
872-388 8 Chicago Zone 03-Kildare IL   490J BOOST SUBSCRIBERCO L.L.C. 358   2026-01-04   
872-388 9 Chicago Zone 03-Kildare IL   490J BOOST SUBSCRIBERCO L.L.C. 358   2026-06-02   

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

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