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: 479

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
636-479 A Herculaneum-Pevely MO PVLYMOAARS0  9533 SOUTHWESTERN BELL 520      
636-479 0 Herculaneum-Pevely MO STLSMO09XMD  7218 TELEPORT COMMUNICATIONS AMERICA, LLC - MO 520   2013-01-14   
636-479 1 Herculaneum-Pevely MO STLSMO09WMD  516C AT&T CORP. 520   2011-10-12   
636-479 3 Herculaneum-Pevely MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2019-02-02   
636-479 4 Herculaneum-Pevely MO PVLYMOAARS0  9533 SOUTHWESTERN BELL 520      
636-479 5 Herculaneum-Pevely MO   145J TERRA NOVA TELECOM INC. 520   2021-01-20   
636-479 6 Herculaneum-Pevely MO PVLYMOAARS0  9533 SOUTHWESTERN BELL 520      
636-479 7 Herculaneum-Pevely MO PVLYMOAARS0  9533 SOUTHWESTERN BELL 520      
636-479 9 Herculaneum-Pevely MO PVLYMOAARS0  9533 SOUTHWESTERN BELL 520      

Last updated: Sat, 21 Mar 2026 23:53:39 UTC

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