Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9MRL callsign genealogy
Currently held by THOMAS, FORREST D
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 K9MRL's current licensee, walking backwards.
- Lennon, Matthew RINgranted 2026-05-16cancelled 2026-06-05
Successor callsigns
Callsigns held now by people who previously held K9MRL.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K9MRL, oldest first.
- THOMAS, FORREST D IN1997-12-19 → cancelled 2009-12-22
- Lennon, Matthew R IN2026-06-05 active