Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NF8T callsign genealogy
Currently held by Rivera, Greggory
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by NF8T's current licensee, walking backwards.
- Rivera, GreggoryIAgranted 2023-11-14cancelled 2023-12-05
Successor callsigns
Callsigns held now by people who previously held NF8T.
- SANDERSON, THOMAS MOHgranted 2021-11-13cancelled 2021-12-18
All historical holders
Every license row we've seen with the callsign NF8T, oldest first.
- Risk, Norman E MI2007-11-28 → cancelled 2020-01-14
- SANDERSON, THOMAS M OH2020-04-24 → cancelled 2021-11-13
- Rivera, Greggory IA2023-12-05 active