Local Calling Guide

Area code/prefix search

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

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
636-451 A GRSMMO55RS2  9533 SOUTHWESTERN BELL 520      
636-451 0 GRSMMO55RS2  9533 SOUTHWESTERN BELL 520      
636-451 1 GRSMMO55RS2  9533 SOUTHWESTERN BELL 520      
636-451 2 GRSMMO55RS2  9533 SOUTHWESTERN BELL 520      
636-451 3   145J TERRA NOVA TELECOM INC. 520      
636-451 4 GRSMMO55RS2  9533 SOUTHWESTERN BELL 520      
636-451 5 GRSMMO55RS2  9533 SOUTHWESTERN BELL 520      
636-451 6 OLVEMOAXCA0  5607 CHARTER FIBERLINK - MISSOURI, LLC - MO 520      
636-451 7 STLSMOPLDS4  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 520      
636-451 8   093F ONVOY, LLC - MO 520      
636-451 9 STLSMOPLDS4  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 520      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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