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: 728

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
573-728 A Argyle MO ARGYMOPARS1  9533 SOUTHWESTERN BELL 521      
573-728 0 Argyle MO JFCYMOXAXHX  093F ONVOY, LLC - MO 521   2017-05-02   
573-728 1 Argyle MO ARGYMOPARS1  9533 SOUTHWESTERN BELL 521      
573-728 2 Argyle MO JFCYMOXAXHX  093F ONVOY, LLC - MO 521   2019-11-29   
573-728 3 Argyle MO JFCYMOXAXHX  093F ONVOY, LLC - MO 521   2019-11-29   
573-728 4 Argyle MO JFCYMOXAXSX  073H TELNYX LLC 521   2020-07-23   
573-728 5 Argyle MO CLMAMOWB0MD  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 521   2014-07-31   
573-728 6 Argyle MO ARGYMOPARS1  9533 SOUTHWESTERN BELL 521      
573-728 8 Argyle MO JFCYMOXAX6Y  624H ONVOY SPECTRUM, LLC 521   2024-03-05   
573-728 9 Argyle MO ARGYMOPARS1  9533 SOUTHWESTERN BELL 521      

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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