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: 543

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
573-543 A St Marys MO STMYMOLIRSP  9533 SOUTHWESTERN BELL 520      
573-543 0 St Marys MO STLSMO05XMX  624H ONVOY SPECTRUM, LLC 520   2025-01-11   
573-543 1 St Marys MO STMYMOLIRSP  9533 SOUTHWESTERN BELL 520      
573-543 2 St Marys MO STMYMOLIRSP  9533 SOUTHWESTERN BELL 520      
573-543 3 St Marys MO STMYMOLIRSP  9533 SOUTHWESTERN BELL 520      
573-543 5 St Marys MO STMYMOLIRSP  9533 SOUTHWESTERN BELL 520      
573-543 6 St Marys MO STLSMO09WMD  516C AT&T CORP. 520   2011-05-20   
573-543 7 St Marys MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2021-07-24   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

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