Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WU4F callsign genealogy
Currently held by BRASOL SR, BASIL 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 WU4F's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held WU4F.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WU4F, oldest first.
- BRASOL SR, BASIL E FL2007-12-08 → cancelled 2014-03-12
- James, Robert S SC2026-01-03 active