Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AJ4OV callsign genealogy
Currently held by COCKLIN, DEREK W
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 AJ4OV's current licensee, walking backwards.
- Cocklin, DerekFLgranted 2026-02-11cancelled 2026-03-03
Successor callsigns
Callsigns held now by people who previously held AJ4OV.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AJ4OV, oldest first.
- COCKLIN, DEREK W FL2008-07-09 → cancelled 2020-07-10
- Cocklin, Derek FL2026-03-03 active