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: 736

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
636-736 A Chesterfield MCA3 MO CHFDMO52DSA  9533 SOUTHWESTERN BELL 520      
636-736 0 Chesterfield MCA3 MO   093F ONVOY, LLC - MO 520   2016-09-27   
636-736 1 Chesterfield MCA3 MO   9533 SOUTHWESTERN BELL 520      
636-736 2 Chesterfield MCA3 MO   9533 SOUTHWESTERN BELL 520      
636-736 3 Chesterfield MCA3 MO   9533 SOUTHWESTERN BELL 520      
636-736 4 Chesterfield MCA3 MO   9533 SOUTHWESTERN BELL 520      
636-736 5 Chesterfield MCA3 MO   9533 SOUTHWESTERN BELL 520      
636-736 6 Chesterfield MCA3 MO   093F ONVOY, LLC - MO 520   2016-09-27   
636-736 7 Chesterfield MCA3 MO   9533 SOUTHWESTERN BELL 520      
636-736 8 Chesterfield MCA3 MO   9533 SOUTHWESTERN BELL 520      
636-736 9 Chesterfield MCA3 MO   624H ONVOY SPECTRUM, LLC 520   2023-11-27   

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

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