Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KC3AUK callsign genealogy
Currently held by Sullivan III, Daniel 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 KC3AUK's current licensee, walking backwards.
- Aukamp, Adam SPAgranted 2020-08-20cancelled 2020-09-09
Successor callsigns
Callsigns held now by people who previously held KC3AUK.
All historical holders
Every license row we've seen with the callsign KC3AUK, oldest first.
- Sullivan III, Daniel J PA2013-06-18 → cancelled 2014-04-25
- Aukamp, Adam S PA2020-09-09 → cancelled 2021-06-25