Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WD5UFO callsign genealogy
Currently held by Knowles II, James S
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 WD5UFO's current licensee, walking backwards.
- Knowles II, James SKSgranted 2015-06-03cancelled 2015-10-23
Successor callsigns
Callsigns held now by people who previously held WD5UFO.
No current licensee on record previously held this callsign.