Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KI4DTY callsign genealogy
Currently held by Yopp, Daniel T
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 KI4DTY's current licensee, walking backwards.
- Yopp, Daniel TSCgranted 2021-02-22cancelled 2021-08-23
Successor callsigns
Callsigns held now by people who previously held KI4DTY.
- Sutherland Jr, Paul ENCgranted 2014-01-08cancelled 2026-04-01
All historical holders
Every license row we've seen with the callsign KI4DTY, oldest first.
- Sutherland Jr, Paul E NC2004-01-26 → cancelled 2004-03-31
- Yopp, Daniel T SC2021-08-23 active