Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KI7U callsign genealogy
Currently held by WELCH, THOMAS 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 KI7U's current licensee, walking backwards.
- Harrington, Vinis "Chris" CWAgranted 2018-03-05cancelled 2018-07-07
Successor callsigns
Callsigns held now by people who previously held KI7U.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KI7U, oldest first.
- WELCH, THOMAS J ID2006-03-29 → cancelled 2018-06-19
- Harrington, Vinis "Chris" WA2018-07-07 active