Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KI7SCI callsign genealogy
Currently held by Jesionowski, Thomas D
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 KI7SCI's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KI7SCI.
- Jesionowski, Thomas DWAgranted 2017-12-16cancelled 2018-02-13