Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4ZRM callsign genealogy
Currently held by Malin, Richard J
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 K4ZRM's current licensee, walking backwards.
- Malin, Richard JNCgranted 2019-11-06cancelled 2019-11-26
Successor callsigns
Callsigns held now by people who previously held K4ZRM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4ZRM, oldest first.
- ROQUEMORE, SUSAN A FL2004-11-02 → cancelled 2016-11-10
- Malin, Richard J NC2019-11-26 active