Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KV4ZA callsign genealogy
Currently held by Clark, Douglas 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 KV4ZA's current licensee, walking backwards.
- Clark, Michael CTNgranted 2014-05-14cancelled 2020-07-28
Successor callsigns
Callsigns held now by people who previously held KV4ZA.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KV4ZA, oldest first.
- Clark, Douglas C VA2014-05-14 → cancelled 2018-08-09
- Clark, Michael C TN2020-07-28 active