Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KA9THY callsign genealogy
Currently held by Rozinski, Katherine 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 KA9THY's current licensee, walking backwards.
- Rozinski, Katherine MINgranted 2001-03-14cancelled 2001-07-31
Successor callsigns
Callsigns held now by people who previously held KA9THY.
No current licensee on record previously held this callsign.