Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4RRX callsign genealogy
Currently held by MILLER, JONATHAN 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 K4RRX's current licensee, walking backwards.
- MILLER, JONATHAN JNCgranted 2011-05-23cancelled 2013-11-13
Successor callsigns
Callsigns held now by people who previously held K4RRX.
No current licensee on record previously held this callsign.