Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Portage des Sioux MCA3, MO

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
636-899 A PRSXMO68RS0  9533 SOUTHWESTERN BELL 520      
636-899 0 PRSXMO68RS0  9533 SOUTHWESTERN BELL 520      
636-899 1 PRSXMO68RS0  9533 SOUTHWESTERN BELL 520      
636-899 9   965H FRACTEL, LLC 520   2020-09-24   

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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