Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KJ9KAL callsign genealogy
Currently held by Helkey, Trevor 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 KJ9KAL's current licensee, walking backwards.
- Helkey, Trevor LILgranted 2024-10-04cancelled 2024-10-22
Successor callsigns
Callsigns held now by people who previously held KJ9KAL.
No current licensee on record previously held this callsign.