Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD9EO callsign genealogy
Currently held by HAEFELI, ROLAND
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 AD9EO's current licensee, walking backwards.
- HAEFELI, ROLANDILgranted 2024-04-12cancelled 2024-05-02
Successor callsigns
Callsigns held now by people who previously held AD9EO.
- HAEFELI, ROLANDILgranted 2024-05-21