Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Pacific MCA5, MO

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
636-271 A PCFCMO61RS0  9533 SOUTHWESTERN BELL 520      
636-271 0 PCFCMO61RS0  9533 SOUTHWESTERN BELL 520      
636-271 1 PCFCMO61RS0  9533 SOUTHWESTERN BELL 520      
636-271 2 PCFCMO61RS0  9533 SOUTHWESTERN BELL 520      
636-271 3 PCFCMO61RS0  9533 SOUTHWESTERN BELL 520      
636-271 4 STLSMO05RMD  993E BANDWIDTH.COM CLEC, LLC - MO 520   2014-05-24   
636-271 5 STLSMO05RMD  993E BANDWIDTH.COM CLEC, LLC - MO 520   2015-09-20   
636-271 6 PCFCMO61RS0  9533 SOUTHWESTERN BELL 520      
636-271 7 PCFCMO61RS0  9533 SOUTHWESTERN BELL 520      
636-271 8 PCFCMO61RS0  9533 SOUTHWESTERN BELL 520      
636-271 9 PCFCMO61RS0  9533 SOUTHWESTERN BELL 520      

Last updated: Tue, 07 Oct 2025 16:47:53 UTC

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