Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N9YUZ callsign genealogy
Currently held by WHITLOW, MICHAEL S
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 N9YUZ's current licensee, walking backwards.
- Whitlow, Michael SILgranted 2022-06-15cancelled 2022-07-26
Successor callsigns
Callsigns held now by people who previously held N9YUZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N9YUZ, oldest first.
- WHITLOW, MICHAEL S IL1994-10-19 → cancelled 2006-10-20
- Whitlow, Michael S FL2022-07-26 active