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: 817 [Rate centres in NPA 817] [Dial plan for NPA 817]

NXX: 971

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
817-971 A Fort Worth TX   624H ONVOY SPECTRUM, LLC 552   2024-08-11   
817-971 1 Fort Worth TX   490J DISH WIRELESS, LLC 552      
817-971 2 Fort Worth TX   490J DISH WIRELESS, LLC 552      
817-971 3 Fort Worth TX   732J NUSO, LLC 552      
817-971 4 Fort Worth TX   732J NUSO, LLC 552      
817-971 6 Fort Worth TX   624H ONVOY SPECTRUM, LLC 552      
817-971 7 Fort Worth TX   624H ONVOY SPECTRUM, LLC 552      
817-971 8 Fort Worth TX   624H ONVOY SPECTRUM, LLC 552      
817-971 9 Fort Worth TX   624H ONVOY SPECTRUM, LLC 552      

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.