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

NXX: 304

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
806-304 A Canadian TX AMRLTX02XMX  903C ONVOY, LLC - TX 546      
806-304 0 Canadian TX AMRLTX02XMX  903C ONVOY, LLC - TX 546      
806-304 1 Canadian TX AMRLTX02XMX  903C ONVOY, LLC - TX 546   2019-05-24   
806-304 2 Canadian TX AMRLTX02XMX  903C ONVOY, LLC - TX 546   2021-08-06   
806-304 3 Canadian TX AMRLTX02XMX  903C ONVOY, LLC - TX 546   2019-08-18   
806-304 4 Canadian TX AMRLTX02XMX  903C ONVOY, LLC - TX 546   2019-08-18   
806-304 5 Canadian TX AMRLTX02XMX  903C ONVOY, LLC - TX 546   2020-08-21   
806-304 6 Canadian TX AMRLTX02XMX  903C ONVOY, LLC - TX 546   2020-08-21   
806-304 7 Canadian TX AMRLTX02XMX  903C ONVOY, LLC - TX 546   2020-08-21   
806-304 8 Canadian TX AMRLTX02XMX  903C ONVOY, LLC - TX 546   2021-02-15   
806-304 9 Canadian TX AMRLTX02XMX  903C ONVOY, LLC - TX 546   2021-09-23   

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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