Local Calling Guide

Area code/prefix search

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

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
405-966 A GRMTOKXARP0  1984 OKLAHOMA COMMUNICATION SYSTEM, INC. 536      
405-966 0   1984 OKLAHOMA COMMUNICATION SYSTEM, INC. 536      
405-966 1   624H ONVOY SPECTRUM, LLC 536   2025-01-22   
405-966 2   1984 OKLAHOMA COMMUNICATION SYSTEM, INC. 536      
405-966 6   1984 OKLAHOMA COMMUNICATION SYSTEM, INC. 536      
405-966 9   409F ONVOY, LLC - OK 536   2023-11-25   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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