Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 557 [Rate centres in NPA 557] [Dial plan for NPA 557]

NXX: 244

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
557-244 A Kirkwood MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2025-12-07   
557-244 5 Kirkwood MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2025-12-07   
557-244 6 Kirkwood MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2025-12-07   
557-244 7 Kirkwood MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2025-12-07   
557-244 8 Kirkwood MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2025-12-07   
557-244 9 Kirkwood MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2025-12-07   

Last updated: Sat, 15 Nov 2025 03:38:44 UTC

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