Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4TAU callsign genealogy
Currently held by MOOD, SKYLER J
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 K4TAU's current licensee, walking backwards.
- Uyeno, Theodore AGAgranted 2016-03-03cancelled 2021-02-06
Successor callsigns
Callsigns held now by people who previously held K4TAU.
- HARVEY, SKYLER JSCgranted 2017-02-10
All historical holders
Every license row we've seen with the callsign K4TAU, oldest first.
- MOOD, SKYLER J SC2001-06-16 → cancelled 2007-03-02
- Uyeno, Theodore A GA2021-02-06 active