Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Muskogee, OK

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
918-913 7   612K CSC VOICE, LLC 538   2013-11-11   
918-913 8 TULSOKDV8MD  6529 T-MOBILE USA, INC. 538   2008-10-14   
918-913 9   612K CSC VOICE, LLC 538   2010-03-11   
918-997 A BXBYOKXBDS1  669B BTC BROADBAND, INC. 538      

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Last updated: Sun, 01 Nov 2026 02:11:49 UTC

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