Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD7AKS callsign genealogy
Currently held by OSTLER, DON 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 KD7AKS's current licensee, walking backwards.
- OSTLER, DON MUTgranted 2021-02-22cancelled 2021-04-30
Successor callsigns
Callsigns held now by people who previously held KD7AKS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KD7AKS, oldest first.
- LIUKKO, GREGORY R WA1998-01-30 → cancelled 2010-02-02
- OSTLER, DON M UT2021-04-30 active