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: 804

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
405-804 A Spencer OK   624H ONVOY SPECTRUM, LLC 536      
405-804 0 Spencer OK   515J IP HORIZON LLC 536   2026-04-04   
405-804 1 Spencer OK OKCYOKCEX9Y  119F BANDWIDTH.COM CLEC, LLC - OK 536   2015-05-29   
405-804 2 Spencer OK OKCYOKCEDS7  384H PEERLESS NETWORK OF OKLAHOMA, LLC - OK 536   2016-02-22   
405-804 8 Spencer OK OKCYOKCEXJZ  624H ONVOY SPECTRUM, LLC 536   2025-01-22   

Last updated: Sat, 21 Mar 2026 23:53:39 UTC

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