Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N9UY callsign genealogy
Currently held by Riederer, Thomas A
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 N9UY's current licensee, walking backwards.
- Riederer, Thomas AWIgranted 2005-11-14cancelled 2007-04-03
Successor callsigns
Callsigns held now by people who previously held N9UY.
No current licensee on record previously held this callsign.