Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KK6ULX callsign genealogy
Currently held by Guder, David 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 KK6ULX's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KK6ULX.
- Guder, David LCAgranted 2015-06-01cancelled 2022-12-06