Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KF4KWO callsign genealogy
Currently held by Nyberg, Jeffrey D
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 KF4KWO'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 KF4KWO.
- Nyberg, Jeffrey DTXgranted 2003-08-01cancelled 2006-01-21