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: 356

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
224-356 A Elk Grove IL CHCGILWUSMD  145J TERRA NOVA TELECOM INC. 358      
224-356 0 Elk Grove IL   145J TERRA NOVA TELECOM INC. 358   2025-02-13   
224-356 1 Elk Grove IL SCBGILRRGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2026-01-04   
224-356 3 Elk Grove IL ELGNILOTGT5  5562 METROPCS, INC. 358   2026-07-12   
224-356 6 Elk Grove IL SCBGILRRGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2026-01-04   
224-356 8 Elk Grove IL SCBGILRRGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2026-01-04   
224-356 9 Elk Grove IL CHCGILWUSMD  145J TERRA NOVA TELECOM INC. 358   2026-07-05   

Last updated: Tue, 01 Sep 2026 00:40:05 UTC

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