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: 373

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
573-373 A Laddonia MO LDDNMOXARS0  1151 BRIGHTSPEED OF EAST MISSOURI, LLC 520      
573-373 0 Laddonia MO   073H TELNYX LLC 520   2020-08-01   
573-373 1 Laddonia MO   1151 BRIGHTSPEED OF EAST MISSOURI, LLC 520      
573-373 2 Laddonia MO   1151 BRIGHTSPEED OF EAST MISSOURI, LLC 520      
573-373 3 Laddonia MO   792K CHARTER IP ENABLED SERVICES, LLC 520   2017-01-12   
573-373 4 Laddonia MO   093F ONVOY, LLC - MO 520   2021-03-06   
573-373 5 Laddonia MO   1151 BRIGHTSPEED OF EAST MISSOURI, LLC 520      
573-373 7 Laddonia MO   4932 LEVEL 3 COMMUNICATIONS, LLC - MO 520   2013-10-14   
573-373 8 Laddonia MO   093F ONVOY, LLC - MO 520   2021-10-23   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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