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: 583

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
405-583 A Mulhall OK STWROK06DS1  4630 CHICKASAW TELECOMMUNICAIONS SERVICES, INC. 536      
405-583 0 Mulhall OK   073H TELNYX LLC 536   2019-01-21   
405-583 1 Mulhall OK   384H PEERLESS NETWORK OF OKLAHOMA, LLC - OK 536   2016-02-22   
405-583 2 Mulhall OK   4630 CHICKASAW TELECOMMUNICAIONS SERVICES, INC. 536   2002-12-28   
405-583 3 Mulhall OK   409F ONVOY, LLC - OK 536   2016-07-06   
405-583 4 Mulhall OK   409F ONVOY, LLC - OK 536   2018-05-03   
405-583 5 Mulhall OK   516C AT&T CORP. 536   2011-08-25   
405-583 6 Mulhall OK   409F ONVOY, LLC - OK 536   2021-03-04   
405-583 7 Mulhall OK   409F ONVOY, LLC - OK 536   2021-03-04   
405-583 8 Mulhall OK   624H ONVOY SPECTRUM, LLC 536   2025-01-22   
405-583 9 Mulhall OK   409F ONVOY, LLC - OK 536   2023-07-24   

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

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