Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC5RRT callsign genealogy
Currently held by COLLINS, MICHAEL P
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 KC5RRT's current licensee, walking backwards.
- COLLINS, MICHAEL PTXgranted 2021-10-04cancelled 2021-10-23
Successor callsigns
Callsigns held now by people who previously held KC5RRT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC5RRT, oldest first.
- SHORTES, SCOTT C TX1995-11-21 → cancelled 2007-11-22
- COLLINS, MICHAEL P TX2021-10-23 active