Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 573 [Rate centres in NPA 573] [Dial plan for NPA 573]

NXX: 763

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
573-763 A Chamois MO CHMSMOXARS0  9787 BRIGHTSPEED OF MISSOURI, LLC 521      
573-763 0 Chamois MO   073H TELNYX LLC 521   2020-07-30   
573-763 2 Chamois MO   093F ONVOY, LLC - MO 521   2019-11-29   
573-763 3 Chamois MO   093F ONVOY, LLC - MO 521   2018-07-16   
573-763 4 Chamois MO   093F ONVOY, LLC - MO 521   2019-11-29   
573-763 5 Chamois MO   9787 BRIGHTSPEED OF MISSOURI, LLC 521      
573-763 6 Chamois MO   4932 LEVEL 3 COMMUNICATIONS, LLC - MO 521   2013-08-26   
573-763 7 Chamois MO   5814 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 521   2025-12-25   
573-763 8 Chamois MO   093F ONVOY, LLC - MO 521   2021-03-06   
573-763 9 Chamois MO   624H ONVOY SPECTRUM, LLC 521   2024-03-05   

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

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