Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W2MSU callsign genealogy
Currently held by Greenia, Roy C
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 W2MSU's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held W2MSU.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W2MSU, oldest first.
- Montclair State University ARC NJ2002-03-20 → cancelled 2014-03-21
- Greenia, Roy C MI2026-05-09 active