Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD4TVT callsign genealogy
Currently held by Hart, Walter 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 KD4TVT's current licensee, walking backwards.
- Hart, Walter FNCgranted 2024-02-08cancelled 2024-02-27
Successor callsigns
Callsigns held now by people who previously held KD4TVT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KD4TVT, oldest first.
- HART III, WALTER F NC2002-07-31 → cancelled 2014-10-28
- Hart, Walter F NC2024-02-27 active