Local Calling Guide

Area code/prefix search

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Creve Coeur, MO

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
557-777 9 NWTPMOABGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2023-08-24   

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Last updated: Wed, 04 Mar 2026 03:00:52 UTC

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