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: 256

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
405-256 A Mustang OK OKCYOKCEXXZ  318J COMCAST IP PHONE, LLC 536      
405-256 0 Mustang OK OKCYOKCEXXZ  318J COMCAST IP PHONE, LLC 536      
405-256 1 Mustang OK OKCYOKCEDS7  384H PEERLESS NETWORK OF OKLAHOMA, LLC - OK 536      
405-256 2 Mustang OK OKCYOKCEX9Y  119F BANDWIDTH.COM CLEC, LLC - OK 536      
405-256 3 Mustang OK OKCYOKCEX9Y  119F BANDWIDTH.COM CLEC, LLC - OK 536      
405-256 4 Mustang OK OKCYOKCEX9Y  119F BANDWIDTH.COM CLEC, LLC - OK 536      
405-256 5 Mustang OK OKCYOKCEXXZ  318J COMCAST IP PHONE, LLC 536      
405-256 6 Mustang OK OKCYOKCEXXZ  318J COMCAST IP PHONE, LLC 536      
405-256 7 Mustang OK OKCYOKCEXXY  516C AT&T CORP. 536      
405-256 8 Mustang OK OKCYOKCEX9Y  119F BANDWIDTH.COM CLEC, LLC - OK 536      
405-256 9 Mustang OK OKCYOKCEXBZ  073H TELNYX LLC 536      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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