Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AI5EV callsign genealogy
Currently held by MUELLER, MARK 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 AI5EV's current licensee, walking backwards.
- MUELLER, MARK JTXgranted 2021-08-10cancelled 2021-08-23
Successor callsigns
Callsigns held now by people who previously held AI5EV.
- MUELLER, MARK JTXgranted 2021-10-01