Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KA9RYZ callsign genealogy
Currently held by MILLER, GREGG 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 KA9RYZ's current licensee, walking backwards.
- MILLER, GREGG MINgranted 2021-12-20cancelled 2022-02-01
Successor callsigns
Callsigns held now by people who previously held KA9RYZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KA9RYZ, oldest first.
- MILLER, GREGG M IN1997-03-26 → cancelled 2009-03-27
- MILLER, GREGG M IN2022-02-01 active