Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KX4JMR callsign genealogy
Currently held by RANDOLPH, JOHN M
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 KX4JMR's current licensee, walking backwards.
- RANDOLPH, JOHN MTNgranted 2021-05-28cancelled 2021-11-06
Successor callsigns
Callsigns held now by people who previously held KX4JMR.
No current licensee on record previously held this callsign.