Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KT4ML callsign genealogy
Currently held by DRIBNAK, JOHN 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 KT4ML's current licensee, walking backwards.
- DRIBNAK, JOHN MGAgranted 2014-04-15cancelled 2014-10-21
Successor callsigns
Callsigns held now by people who previously held KT4ML.
- DRIBNAK, JOHN MGAgranted 2014-04-15cancelled 2014-10-21
All historical holders
Every license row we've seen with the callsign KT4ML, oldest first.
- DRIBNAK, JOHN M GA2013-06-04 → cancelled 2014-04-15
- DRIBNAK, JOHN M GA2025-05-08 active