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: 583

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
573-583 A Oran MO ORANMOCORSJ  9533 SOUTHWESTERN BELL 520      
573-583 0 Oran MO   9533 SOUTHWESTERN BELL 520      
573-583 1 Oran MO   093F ONVOY, LLC - MO 520   2016-09-28   
573-583 2 Oran MO   515J IP HORIZON LLC 520   2023-12-29   
573-583 3 Oran MO   4932 LEVEL 3 COMMUNICATIONS, LLC - MO 520   2006-10-01   
573-583 4 Oran MO   515J IP HORIZON LLC 520   2023-12-29   
573-583 5 Oran MO   093F ONVOY, LLC - MO 520   2021-07-24   
573-583 6 Oran MO   5814 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 520   2023-12-27   
573-583 7 Oran MO   225F PEERLESS NETWORK OF MISSOURI, LLC - MO 520   2018-12-01   
573-583 8 Oran MO   073H TELNYX LLC 520   2018-10-24   
573-583 9 Oran MO   225F PEERLESS NETWORK OF MISSOURI, LLC - MO 520   2018-10-30   

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

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