Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4THS callsign genealogy
Currently held by Feuerriegel, Robert T
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 N4THS's current licensee, walking backwards.
- Feuerriegel, Robert TALgranted 2021-09-14cancelled 2021-11-05
Successor callsigns
Callsigns held now by people who previously held N4THS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4THS, oldest first.
- Carver, Henry F WV2008-04-09 → cancelled 2020-07-08
- Feuerriegel, Robert T AL2021-11-05 active