Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K6MRC callsign genealogy
Currently held by Henning, Thomas G
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 K6MRC's current licensee, walking backwards.
- KK6OLYcancelledMEDTRE FAC USNS MERCYAPgranted 2014-08-14cancelled 2014-09-03
Successor callsigns
Callsigns held now by people who previously held K6MRC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K6MRC, oldest first.
- Henning, Thomas G CA2002-04-05 → cancelled 2014-04-08
- MEDTRE FAC USNS MERCY AP2014-09-03 → cancelled 2026-09-05