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: 238

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
557-238 A Kirkwood MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2025-08-16   
557-238 3 Kirkwood MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2025-08-16   
557-238 4 Kirkwood MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2025-08-16   
557-238 5 Kirkwood MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2025-08-16   
557-238 6 Kirkwood MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2025-08-16   
557-238 7 Kirkwood MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2025-08-16   
557-238 8 Kirkwood MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2025-08-16   
557-238 9 Kirkwood MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2025-08-16   

Last updated: Tue, 15 Jul 2025 18:46:49 UTC

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