Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4DMH callsign genealogy
Currently held by THURMAN, U F
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 N4DMH's current licensee, walking backwards.
- Hitzigrath, Dennis MFLgranted 2014-04-16cancelled 2014-05-13
Successor callsigns
Callsigns held now by people who previously held N4DMH.
- Hitzigrath, Dennis MFLgranted 2022-01-14
All historical holders
Every license row we've seen with the callsign N4DMH, oldest first.
- THURMAN, U F GA1996-03-19 → cancelled 2008-03-20
- Hitzigrath, Dennis M FL2014-05-13 → cancelled 2022-01-14