Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4JMR callsign genealogy
Currently held by ROBBINS, JAMES 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 W4JMR's current licensee, walking backwards.
- MAYORGA, JOELKYgranted 2025-11-21cancelled 2026-04-17
Successor callsigns
Callsigns held now by people who previously held W4JMR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4JMR, oldest first.
- ROBBINS, JAMES M TN2014-01-16 → cancelled 2026-03-28
- MAYORGA, JOEL KY2026-04-17 active