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: 806 [Rate centres in NPA 806] [Dial plan for NPA 806]

NXX: 403

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
806-403 A Lubbock TX LBCKTXPSX7Z  318J COMCAST IP PHONE, LLC 544      
806-403 0 Lubbock TX   004F BANDWIDTH.COM CLEC, LLC - TX 544   2022-10-22   
806-403 1 Lubbock TX   004F BANDWIDTH.COM CLEC, LLC - TX 544   2022-10-22   
806-403 2 Lubbock TX   004F BANDWIDTH.COM CLEC, LLC - TX 544   2022-10-22   
806-403 3 Lubbock TX   903C ONVOY, LLC - TX 544   2022-09-17   
806-403 4 Lubbock TX   939H COMMIO, LLC 544   2022-12-02   
806-403 5 Lubbock TX   939H COMMIO, LLC 544   2022-12-02   
806-403 6 Lubbock TX   939H COMMIO, LLC 544   2022-12-02   
806-403 7 Lubbock TX   318J COMCAST IP PHONE, LLC 544   2023-05-24   
806-403 8 Lubbock TX   939H COMMIO, LLC 544   2024-01-19   
806-403 9 Lubbock TX   939H COMMIO, LLC 544   2024-01-19   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.