Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 447 [Rate centres in NPA 447] [Dial plan for NPA 447]

NXX: 297

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
447-297 A Marshall IL TRRHIN02UMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 938   2024-06-10   
447-297 7 Marshall IL TRRHIN02UMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 938   2024-06-10   
447-297 8 Marshall IL TRRHIN02UMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 938   2024-06-10   
447-297 9 Marshall IL TRRHIN02UMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 938   2024-06-10   

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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