Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Festus-Crystal City MCA5, MO

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
636-931 A FSTSMOYEDS0  9533 SOUTHWESTERN BELL 520      
636-931 0 FSTSMOYEDS0  9533 SOUTHWESTERN BELL 520      
636-931 1 FSTSMOYEDS0  9533 SOUTHWESTERN BELL 520      
636-931 2 FSTSMOYEDS0  9533 SOUTHWESTERN BELL 520      
636-931 3 FSTSMOYEDS0  9533 SOUTHWESTERN BELL 520      
636-931 4 FSTSMOYEDS0  9533 SOUTHWESTERN BELL 520      
636-931 5 FSTSMOYEDS0  9533 SOUTHWESTERN BELL 520      
636-931 6 FSTSMOYEDS0  9533 SOUTHWESTERN BELL 520      
636-931 7 FSTSMOYEDS0  9533 SOUTHWESTERN BELL 520      
636-931 8 STLTMOBOAMD  5814 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 520   2019-01-21   
636-931 9 STLSMOWQDS2  093F ONVOY, LLC - MO 520   2019-02-02   

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

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