Confidence: Medium · Source: FCC ULS · As of 2026-09-15
KD4UMP callsign genealogy
Currently held by MARSEE, DARRYL E
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 KD4UMP's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KD4UMP.
- MARSEE, DARRYL EFLgranted 2013-12-11cancelled 2026-03-06