Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WT3J callsign genealogy
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 WT3J's current licensee, walking backwards.
- Wiseman, John RPAgranted 2006-09-14cancelled 2006-12-16
Successor callsigns
Callsigns held now by people who previously held WT3J.
- HELLDORFER, CHARLES GVAgranted 2017-07-27
All historical holders
Every license row we've seen with the callsign WT3J, oldest first.
- Wiseman, John R UT2016-12-24 active
- —— → cancelled 1997-10-20