Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4MUM callsign genealogy
Currently held by Memorial University Medical Radio Club
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 K4MUM's current licensee, walking backwards.
- KJ4DQLcancelledMemorial University Medical Radio ClubGAgranted 2008-04-24cancelled 2008-05-16
Successor callsigns
Callsigns held now by people who previously held K4MUM.
No current licensee on record previously held this callsign.