Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KI4FYH callsign genealogy
Currently held by Marvin, William R
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 KI4FYH'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 KI4FYH.
- Marvin, William RNCgranted 2014-05-17cancelled 2026-07-08