Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4TAU callsign genealogy
Currently held by Macarthur, Terrence E
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 W4TAU's current licensee, walking backwards.
- Macarthur, Terrence EUTgranted 2016-08-02cancelled 2016-08-30
Successor callsigns
Callsigns held now by people who previously held W4TAU.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4TAU, oldest first.
- MacArthur, Claude R FL2006-01-07 → cancelled 2014-09-08
- Macarthur, Terrence E UT2016-08-30 active