Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4JMR callsign genealogy
Currently held by SANDERS JR, ROBERT 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 K4JMR's current licensee, walking backwards.
- Ray, Jeffrey MTNgranted 2016-04-28cancelled 2016-08-12
Successor callsigns
Callsigns held now by people who previously held K4JMR.
- RATLIFF, JOHN MKYgranted 2014-07-22cancelled 2026-07-25
All historical holders
Every license row we've seen with the callsign K4JMR, oldest first.
- SANDERS JR, ROBERT L GA2001-06-01 → cancelled 2013-08-28
- RATLIFF, JOHN M TN2014-03-04 → cancelled 2014-07-22
- Ray, Jeff TN2026-08-12 active