Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC3BU callsign genealogy
Currently held by Olson, Daryl L
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 AC3BU's current licensee, walking backwards.
- Olson, Daryl LMDgranted 2017-06-12cancelled 2017-10-23
Successor callsigns
Callsigns held now by people who previously held AC3BU.
- Olson, Daryl LMDgranted 2020-06-05