Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N7UYJ callsign genealogy
Currently held by MUELLER, DANIEL R
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 N7UYJ's current licensee, walking backwards.
- LE BIEN, SANDRACAgranted 2011-07-19cancelled 2020-03-10
Successor callsigns
Callsigns held now by people who previously held N7UYJ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N7UYJ, oldest first.
- MUELLER, DANIEL R AZ2003-02-25 → cancelled 2015-05-27
- LE BIEN, SANDRA AZ2020-03-10 active