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: 376

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
636-376 A High Ridge MO HGRGMO56RS2  9533 SOUTHWESTERN BELL 520      
636-376 0 High Ridge MO   9533 SOUTHWESTERN BELL 520      
636-376 1 High Ridge MO   225F PEERLESS NETWORK OF MISSOURI, LLC - MO 520   2013-05-05   
636-376 2 High Ridge MO   145J TERRA NOVA TELECOM INC. 520   2022-06-01   
636-376 3 High Ridge MO   9533 SOUTHWESTERN BELL 520      
636-376 4 High Ridge MO   9533 SOUTHWESTERN BELL 520      
636-376 5 High Ridge MO   9533 SOUTHWESTERN BELL 520      
636-376 6 High Ridge MO   225F PEERLESS NETWORK OF MISSOURI, LLC - MO 520   2013-05-05   
636-376 7 High Ridge MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2011-02-06   
636-376 8 High Ridge MO   9533 SOUTHWESTERN BELL 520      
636-376 9 High Ridge MO   9533 SOUTHWESTERN BELL 520      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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