Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC0L callsign genealogy
Currently held by OLSON, ROBERT E
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 AC0L's current licensee, walking backwards.
- Stout, Daniel GCOgranted 2002-10-03cancelled 2005-05-13
Successor callsigns
Callsigns held now by people who previously held AC0L.
- ROSKE, ROBERT AMOgranted 2022-01-19
All historical holders
Every license row we've seen with the callsign AC0L, oldest first.
- OLSON, ROBERT E MN1988-03-22 → cancelled 2000-03-23
- ROSKE, ROBERT A MO2000-04-25 → cancelled 2002-04-13
- Stout, Daniel G CO2025-04-15 active