Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KA3USO callsign genealogy
Currently held by Grunick, Miria L
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 KA3USO's current licensee, walking backwards.
- Grunick, Miria LNYgranted 2013-01-31cancelled 2013-04-12
Successor callsigns
Callsigns held now by people who previously held KA3USO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KA3USO, oldest first.
- WISE, FRED W PA2009-01-09 → cancelled 2012-05-19
- Grunick, Miria L PA2023-08-15 active