Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K6RTR callsign genealogy
Currently held by Mills Jr, Frederick N
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 K6RTR's current licensee, walking backwards.
- ROBINSON, ROGER TCAgranted 2020-03-20cancelled 2023-08-25
Successor callsigns
Callsigns held now by people who previously held K6RTR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K6RTR, oldest first.
- VAUGHN, DELBERT L CA1996-04-29 → cancelled 2008-04-30
- Mills Jr, Frederick N FL2010-02-09 → cancelled 2022-02-10
- ROBINSON, ROGER T CA2023-08-25 active