Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4MRM callsign genealogy
Currently held by Molus, Mark R
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 K4MRM's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held K4MRM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4MRM, oldest first.
- VIRGINIA RACES INC FOR MEMORIAL REGIONAL MEDICAL CENTER VA2004-09-11 → cancelled 2016-09-13
- Molus, Mark R KY2017-08-15 active