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: 681

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
224-681 A Algonquin IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2026-04-09   
224-681 8 Algonquin IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2026-04-09   
224-681 9 Algonquin IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2026-04-09   

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

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