Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W3MRJ callsign genealogy
Currently held by HARTMAN, MICHAEL A
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 W3MRJ's current licensee, walking backwards.
- HARTMAN, MICHAEL APAgranted 2021-03-23cancelled 2021-05-04
Successor callsigns
Callsigns held now by people who previously held W3MRJ.
No current licensee on record previously held this callsign.