Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K3MR callsign genealogy
Currently held by DE ROUVILLE, MATTHEW 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 K3MR's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held K3MR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K3MR, oldest first.
- DE ROUVILLE, MATTHEW M NJ2014-07-08 → cancelled 2026-07-10
- SLOYER, RANDALL T PA2026-07-28 active