Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K6EX callsign genealogy
Currently held by ADAMS, FRANK C
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 K6EX's current licensee, walking backwards.
- Rosenthal, Lawrence DCAgranted 2017-05-30cancelled 2017-10-20
Successor callsigns
Callsigns held now by people who previously held K6EX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K6EX, oldest first.
- ADAMS, FRANK C CA2006-08-08 → cancelled 2015-09-29
- Rosenthal, Lawrence D CA2017-10-20 active