Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 636 [Rate centres in NPA 636] [Dial plan for NPA 636]

NXX: 584

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
636-584 A Union MO UNINMOLURS0  9533 SOUTHWESTERN BELL 520      
636-584 0 Union MO   9533 SOUTHWESTERN BELL 520      
636-584 1 Union MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2005-04-14   
636-584 2 Union MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2005-04-14   
636-584 3 Union MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520      
636-584 4 Union MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520      
636-584 5 Union MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2004-03-06   
636-584 6 Union MO   9533 SOUTHWESTERN BELL 520      
636-584 7 Union MO   9533 SOUTHWESTERN BELL 520      
636-584 8 Union MO   9533 SOUTHWESTERN BELL 520      
636-584 9 Union MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2004-10-24   

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

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