Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KI4FDT callsign genealogy
Currently held by HUBBARD JR, JOHN E
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 KI4FDT'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 KI4FDT.
- HUBBARD JR, JOHN EOHgranted 2026-07-25