Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K5RST callsign genealogy
Currently held by BERTIE, JAMES E
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 K5RST's current licensee, walking backwards.
- Lemon, Ross MTXgranted 2003-04-09cancelled 2006-12-27
Successor callsigns
Callsigns held now by people who previously held K5RST.
- BERTIE, JAMES ETXgranted 2022-11-29
All historical holders
Every license row we've seen with the callsign K5RST, oldest first.
- BERTIE, JAMES E TX1999-08-02 → cancelled 2002-12-21
- LEMON, ROSS M TX2016-12-15 active