Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W8MJG callsign genealogy
Currently held by Giardina, Matthew 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 W8MJG's current licensee, walking backwards.
- Giardina, Matthew JOHgranted 2023-09-14cancelled 2025-09-23
Successor callsigns
Callsigns held now by people who previously held W8MJG.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W8MJG, oldest first.
- Diehn, Richard J OH2004-05-28 → cancelled 2007-09-18
- DIEHN, DEBBERA FL2009-10-31 → cancelled 2021-11-02
- Giardina, Matthew J OH2025-09-23 active