Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4CTD callsign genealogy
Currently held by Conver, Timothy S
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 K4CTD's current licensee, walking backwards.
- Conver, Timothy SNCgranted 2017-02-17cancelled 2017-09-26
Successor callsigns
Callsigns held now by people who previously held K4CTD.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4CTD, oldest first.
- BLAIR, HENRI J DE1996-07-17 → cancelled 2008-07-18
- Conver, Timothy S NC2017-09-26 active