Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N5TBT callsign genealogy
Currently held by DE ROBLES JR, RICHARD B
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 N5TBT's current licensee, walking backwards.
- DeRobles Jr, Richard BTXgranted 2014-03-27cancelled 2018-03-06
Successor callsigns
Callsigns held now by people who previously held N5TBT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N5TBT, oldest first.
- DE ROBLES JR, RICHARD B TX1991-04-30 → cancelled 2003-05-01
- DeRobles Jr, Richard B TX2018-03-06 active