Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 224 [Rate centres in NPA 224] [Dial plan for NPA 224]

NXX: 452

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
224-452 A Palatine IL CHCGIL24DS6  224C ONVOY, LLC 358      
224-452 0 Palatine IL CHCGIL24MMD  515J IP HORIZON LLC 358   2021-07-07   
224-452 1 Palatine IL CHCGILWUKMD  939H COMMIO, LLC 358   2021-10-14   
224-452 2 Palatine IL CHCGIL24DS6  224C ONVOY, LLC 358   2021-07-07   
224-452 3 Palatine IL CHCGIL24DS6  224C ONVOY, LLC 358   2021-07-07   
224-452 4 Palatine IL CHCGIL24DS6  224C ONVOY, LLC 358   2021-07-06   
224-452 5 Palatine IL CHCGIL24DS6  224C ONVOY, LLC 358   2021-07-07   
224-452 6 Palatine IL CHCGIL24DS6  224C ONVOY, LLC 358   2021-07-07   
224-452 7 Palatine IL CHCGILWUKMD  939H COMMIO, LLC 358   2021-10-14   
224-452 8 Palatine IL CHCGILWUKMD  939H COMMIO, LLC 358   2021-10-14   
224-452 9 Palatine IL CHCGILWUKMD  939H COMMIO, LLC 358   2021-10-14   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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