Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 405 [Rate centres in NPA 405] [Dial plan for NPA 405]

NXX: 994

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
405-994 A Byars OK OKCYOKCEXJY  409F ONVOY, LLC - OK 536      
405-994 0 Byars OK   624H ONVOY SPECTRUM, LLC 536   2025-01-22   
405-994 4 Byars OK   409F ONVOY, LLC - OK 536   2021-09-10   

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

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