Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KN4JMX callsign genealogy
Currently held by HILLIKER SR, LEONARD R
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 KN4JMX'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 KN4JMX.
- HILLIKER SR, LEONARD RVAgranted 2018-03-03