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.

Switch: AMRLTX02XMX

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
806-230 A Hart TX 903C ONVOY, LLC - TX 546      
806-232 A Borger TX 903C ONVOY, LLC - TX 546   2024-05-13   
806-304 A Canadian TX 903C ONVOY, LLC - TX 546      
806-432 A Canadian TX 903C ONVOY, LLC - TX 546      
806-450 A Allison TX 903C ONVOY, LLC - TX 546      
806-491 A Gruver TX 903C ONVOY, LLC - TX 546      
806-513 A Amarillo TX 903C ONVOY, LLC - TX 546      
806-524 A Bovina TX 903C ONVOY, LLC - TX 546      
806-531 A Sanford TX 903C ONVOY, LLC - TX 546      
806-541 A Dimmitt TX 903C ONVOY, LLC - TX 546      
806-542 A Happy TX 903C ONVOY, LLC - TX 546      
806-545 A Pampa TX 903C ONVOY, LLC - TX 546      
806-547 A Fritch TX 903C ONVOY, LLC - TX 546      
806-550 A Pampa TX 903C ONVOY, LLC - TX 546      
806-586 A Mobeetie TX 903C ONVOY, LLC - TX 546      
806-692 A White Deer TX 903C ONVOY, LLC - TX 546      
806-714 A Borger TX 903C ONVOY, LLC - TX 546      
806-719 A Hart TX 903C ONVOY, LLC - TX 546      
806-737 A Amarillo TX 903C ONVOY, LLC - TX 546      
806-806 A Hereford TX 903C ONVOY, LLC - TX 546      
806-836 A Stinnett TX 903C ONVOY, LLC - TX 546      
806-910 A Amarillo TX 903C ONVOY, LLC - TX 546      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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