Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KG5TRO callsign genealogy
Currently held by Cardenas, Christopher 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 KG5TRO's current licensee, walking backwards.
- Cardenas, Christopher MTXgranted 2015-02-20cancelled 2020-11-03
Successor callsigns
Callsigns held now by people who previously held KG5TRO.
- CLARK, NICHOLAS BTXgranted 2017-07-04
All historical holders
Every license row we've seen with the callsign KG5TRO, oldest first.
- CLARK, NICHOLAS B TX2017-06-12 → cancelled 2017-07-04
- Cardenas, Christopher M TX2020-11-03 active