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

NXX: 507

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
405-507 A Britton OK   409F ONVOY, LLC - OK 536      
405-507 0 Britton OK   409F ONVOY, LLC - OK 536      
405-507 1 Britton OK   409F ONVOY, LLC - OK 536      
405-507 2 Britton OK   409F ONVOY, LLC - OK 536      
405-507 3 Britton OK   409F ONVOY, LLC - OK 536      
405-507 4 Britton OK   409F ONVOY, LLC - OK 536      
405-507 5 Britton OK   409F ONVOY, LLC - OK 536      
405-507 6 Britton OK   409F ONVOY, LLC - OK 536      
405-507 7 Britton OK   409F ONVOY, LLC - OK 536      
405-507 8 Britton OK   409F ONVOY, LLC - OK 536      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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