Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD9SLU callsign genealogy
Currently held by Sluder, Darren 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 KD9SLU's current licensee, walking backwards.
- Sluder, Darren JINgranted 2018-10-31cancelled 2019-02-02
Successor callsigns
Callsigns held now by people who previously held KD9SLU.
No current licensee on record previously held this callsign.