Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K5ZL callsign genealogy
Currently held by Drabbant, Steven 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 K5ZL's current licensee, walking backwards.
- Drabbant, Steven MTXgranted 2014-08-07cancelled 2019-07-02
Successor callsigns
Callsigns held now by people who previously held K5ZL.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K5ZL, oldest first.
- SHAW, STANLEY D TX2012-07-12 → cancelled 2017-06-12
- Drabbant, Steven M TX2019-07-02 active