Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N1FV callsign genealogy
Currently held by Sproul, John J
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 N1FV's current licensee, walking backwards.
- Sproul, John JNHgranted 2013-09-26cancelled 2013-11-09
Successor callsigns
Callsigns held now by people who previously held N1FV.
- Thomas, Roger LVTgranted 2011-10-01cancelled 2023-10-03
All historical holders
Every license row we've seen with the callsign N1FV, oldest first.
- Thomas, Roger L VT2006-12-05 → cancelled 2011-10-01
- Sproul, John J KY2024-09-24 active