Local Calling Guide

Area code/prefix search

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NPA: 573 [Rate centres in NPA 573] [Dial plan for NPA 573]

NXX: 940

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
573-940 A Ashland MO CLMAMOXAXIX  093F ONVOY, LLC - MO 521      
573-940 2 Ashland MO   093F ONVOY, LLC - MO 521   2023-08-27   
573-940 4 Ashland MO   6529 T-MOBILE USA, INC. 521   2025-12-15   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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