Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KU4SX callsign genealogy
Currently held by BEIGIE, JEFFREY M
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 KU4SX'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 KU4SX.
- Beigie, Jeffrey MNJgranted 1999-03-02cancelled 2000-08-05