Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4FSO callsign genealogy
Currently held by Higi, John 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 W4FSO's current licensee, walking backwards.
- Higi, John RVAgranted 2020-09-21cancelled 2020-12-29
Successor callsigns
Callsigns held now by people who previously held W4FSO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4FSO, oldest first.
- REGI, ALEX L NC2002-12-09 → cancelled 2015-01-27
- Higi, John R VA2020-12-29 active