Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB7OK callsign genealogy
Currently held by Buynytskyy, Oleksiy
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 AB7OK's current licensee, walking backwards.
- Buynytskyy, OleksiyWAgranted 2018-02-16cancelled 2018-03-13
Successor callsigns
Callsigns held now by people who previously held AB7OK.
- HOWARD, WILLIAMSCgranted 2020-10-07
All historical holders
Every license row we've seen with the callsign AB7OK, oldest first.
- HOWARD, WILLIAM ID1996-01-23 → cancelled 2000-12-23
- Buynytskyy, Oleksiy WA2018-03-13 active