Local Calling Guide

Area code/prefix search

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

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
580-443 A MLBNOKXADS0  1965 WINDSTREAM OKLAHOMA, INC. 536      
580-459 A MLBNOKXAPS0  1965 WINDSTREAM OKLAHOMA, INC. 536      
580-459 0 OKCYOKCEXJZ  624H ONVOY SPECTRUM, LLC 536   2025-01-22   
580-459 9 MLBNOKXAPS0  1965 WINDSTREAM OKLAHOMA, INC. 536   2017-08-20   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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