Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KC1UJI callsign genealogy
Currently held by Peterson, John S
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 KC1UJI'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 KC1UJI.
- Peterson, John SRIgranted 2024-04-02cancelled 2026-02-24