Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4ADZ callsign genealogy
Currently held by Dickens, David 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 K4ADZ's current licensee, walking backwards.
- BOWMAN, JOHNSCgranted 2020-08-04cancelled 2020-10-31
Successor callsigns
Callsigns held now by people who previously held K4ADZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4ADZ, oldest first.
- Dickens, David M FL2007-09-07 → cancelled 2019-09-10
- BOWMAN, JOHN SC2020-10-31 active