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: 485

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
224-485 A Barrington IL CHCGILWBXUZ  732J NUSO, LLC 358      
224-485 0 Barrington IL   224C ONVOY, LLC 358   2023-07-22   
224-485 1 Barrington IL   732J NUSO, LLC 358   2022-11-21   
224-485 2 Barrington IL   224C ONVOY, LLC 358   2023-10-16   
224-485 3 Barrington IL   224C ONVOY, LLC 358   2023-10-16   
224-485 4 Barrington IL   224C ONVOY, LLC 358   2023-10-16   
224-485 5 Barrington IL   224C ONVOY, LLC 358   2023-10-16   
224-485 6 Barrington IL   224C ONVOY, LLC 358   2023-10-16   
224-485 7 Barrington IL   224C ONVOY, LLC 358   2023-10-16   
224-485 8 Barrington IL   224C ONVOY, LLC 358   2023-10-16   
224-485 9 Barrington IL   732J NUSO, LLC 358   2023-12-03   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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