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: 303

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
405-303 A Seminole OK SMNLOKMADS0  9533 SOUTHWESTERN BELL 536      
405-303 0 Seminole OK   6529 T-MOBILE USA, INC. 536   2010-08-11   
405-303 1 Seminole OK   119F BANDWIDTH.COM CLEC, LLC - OK 536   2008-12-01   
405-303 2 Seminole OK   9533 SOUTHWESTERN BELL 536      
405-303 3 Seminole OK   6529 T-MOBILE USA, INC. 536   2012-01-24   
405-303 4 Seminole OK   9533 SOUTHWESTERN BELL 536      
405-303 5 Seminole OK   516C AT&T CORP. 536   2011-02-05   
405-303 6 Seminole OK   390E CEBRIDGE TELECOM OK, LLC DBA SUDDENLINK COMMS - OK 536   2014-03-02   
405-303 7 Seminole OK   5257 LEVEL 3 COMMUNICATIONS, LLC - OK 536   2012-02-25   
405-303 8 Seminole OK   6529 T-MOBILE USA, INC. 536   2013-10-28   
405-303 9 Seminole OK   119F BANDWIDTH.COM CLEC, LLC - OK 536   2014-06-13   

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

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