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: 866

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
573-866 A Patton MO PATNMOTORSG  9533 SOUTHWESTERN BELL 520      
573-866 0 Patton MO   145J TERRA NOVA TELECOM INC. 520   2022-01-04   
573-866 1 Patton MO PATNMOTORSG  9533 SOUTHWESTERN BELL 520      
573-866 2 Patton MO PATNMOTORSG  9533 SOUTHWESTERN BELL 520      
573-866 3 Patton MO   145J TERRA NOVA TELECOM INC. 520   2025-10-06   
573-866 4 Patton MO STLSMOWQCMD  515J IP HORIZON LLC 520   2023-12-30   
573-866 5 Patton MO STLSMO09WMD  516C AT&T CORP. 520   2011-05-20   
573-866 6 Patton MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2016-09-28   
573-866 7 Patton MO STLSMO05XMX  624H ONVOY SPECTRUM, LLC 520   2025-01-11   
573-866 8 Patton MO STLSMOWQCMD  515J IP HORIZON LLC 520   2023-12-30   
573-866 9 Patton MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2021-07-24   

Last updated: Sat, 15 Nov 2025 03:38:44 UTC

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