Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KN4SFR callsign genealogy
Currently held by OHANESON, DONALD 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 KN4SFR'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 KN4SFR.
- OHANESON, DONALD EVAgranted 2019-03-09cancelled 2021-01-05