Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KR1SPY callsign genealogy
Currently held by KILLIAN, KADEN S
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 KR1SPY's current licensee, walking backwards.
- KILLIAN, KADEN SUTgranted 2018-10-17cancelled 2018-12-11
Successor callsigns
Callsigns held now by people who previously held KR1SPY.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KR1SPY, oldest first.
- Burros, Christopher B MO2005-09-07 → cancelled 2017-09-08
- KILLIAN, KADEN S UT2018-12-11 active