Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AG0U callsign genealogy
Currently held by Fleischer, Mark W
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 AG0U's current licensee, walking backwards.
- Fleischer, Mark WMNgranted 2022-12-07cancelled 2026-06-27
Successor callsigns
Callsigns held now by people who previously held AG0U.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AG0U, oldest first.
- SHORT, JAMES K MO2013-09-05 → cancelled 2026-03-06
- Fleischer, Mark W MN2026-06-27 active