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: 200

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
557-200 A Ladue MO STLSMOWQDS2  093F ONVOY, LLC - MO 520      
557-200 0 Ladue MO STLSMOWQ8MD  073H TELNYX LLC 520      
557-200 1 Ladue MO NWTPMOABGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520      
557-200 2 Ladue MO NWTPMOABGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520      
557-200 3 Ladue MO STLSMOWQDS2  093F ONVOY, LLC - MO 520      
557-200 4 Ladue MO STLSMOWQDS2  093F ONVOY, LLC - MO 520      
557-200 5 Ladue MO   093F ONVOY, LLC - MO 520      
557-200 6 Ladue MO STLSMOWQDS2  093F ONVOY, LLC - MO 520      
557-200 7 Ladue MO STLSMOWQDS2  093F ONVOY, LLC - MO 520      
557-200 8 Ladue MO STLSMOWQDS2  093F ONVOY, LLC - MO 520      
557-200 9 Ladue MO NWTPMOABGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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