Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WA4UFO callsign genealogy
Currently held by VON BAUMGARTEN, ERIK
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 WA4UFO's current licensee, walking backwards.
- Von Baumgarten, ErikVAgranted 2007-02-12cancelled 2007-06-19
Successor callsigns
Callsigns held now by people who previously held WA4UFO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WA4UFO, oldest first.
- SPENCER, HENRY J FL1996-11-19 → cancelled 2007-05-25
- VON BAUMGARTEN, ERIK VA2017-04-07 active