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: 229

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
557-229 A Kirkwood MO NWTPMOABGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2025-01-11   
557-229 0 Kirkwood MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2025-03-10   
557-229 1 Kirkwood MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2025-03-10   
557-229 2 Kirkwood MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2025-03-10   
557-229 3 Kirkwood MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2025-03-10   
557-229 4 Kirkwood MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2025-03-10   
557-229 5 Kirkwood MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2025-03-10   
557-229 6 Kirkwood MO NWTPMOABGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2025-01-11   
557-229 7 Kirkwood MO NWTPMOABGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2025-01-11   
557-229 8 Kirkwood MO NWTPMOABGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2025-01-11   
557-229 9 Kirkwood MO NWTPMOABGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2025-01-11   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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