Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WQ0O callsign genealogy
Currently held by VanSlooten, Hans 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 WQ0O's current licensee, walking backwards.
- Van Slooten, Hans JMNgranted 2024-05-31cancelled 2024-07-26
Successor callsigns
Callsigns held now by people who previously held WQ0O.
- ROBERTS, TODD JLAgranted 2021-12-28
All historical holders
Every license row we've seen with the callsign WQ0O, oldest first.
- AULGUR, MICHAEL D MO2009-02-24 → cancelled 2021-02-18
- ROBERTS, TODD J LA2021-09-08 → cancelled 2021-12-28
- VanSlooten, Hans J MN2024-07-26 active