Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 405 [Rate centres in NPA 405] [Dial plan for NPA 405]

NXX:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
405-783 A Byars OK BYRSOKMARS1  9533 SOUTHWESTERN BELL 536      
405-783 1 Byars OK   9533 SOUTHWESTERN BELL 536      
405-783 2 Byars OK   384H PEERLESS NETWORK OF OKLAHOMA, LLC - OK 536   2018-09-20   
405-783 4 Byars OK   9533 SOUTHWESTERN BELL 536      
405-783 5 Byars OK   409F ONVOY, LLC - OK 536   2016-04-14   
405-783 6 Byars OK   409F ONVOY, LLC - OK 536   2016-04-14   
405-783 7 Byars OK   409F ONVOY, LLC - OK 536   2016-06-29   
405-783 8 Byars OK   409F ONVOY, LLC - OK 536   2016-06-29   
405-783 9 Byars OK   145J TERRA NOVA TELECOM INC. 536   2020-05-14   

Last updated: Sat, 11 Jul 2020 20:37:26 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.