Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KT4CFD callsign genealogy
Currently held by Marsh, Joseph D
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 KT4CFD's current licensee, walking backwards.
- Marsh, Joseph DALgranted 2020-02-13cancelled 2020-03-07
Successor callsigns
Callsigns held now by people who previously held KT4CFD.
- Marsh, Joseph DALgranted 2020-03-07