Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KI4TFK callsign genealogy
Currently held by REDMAN, JOHN H
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 KI4TFK'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 KI4TFK.
- REDMAN, JOHN HGAgranted 2017-10-05