Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9MX callsign genealogy
Currently held by HOLECEK, ALLEN 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 W9MX's current licensee, walking backwards.
- Troiano, Joseph ACAgranted 2021-07-20cancelled 2021-12-31
Successor callsigns
Callsigns held now by people who previously held W9MX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W9MX, oldest first.
- HOLECEK, ALLEN R IL2016-09-13 → cancelled 2019-12-11
- Troiano, Joseph A CA2021-12-31 active