Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WB4UFO callsign genealogy
Currently held by POPLAWSKI SR, JOHN A
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 WB4UFO's current licensee, walking backwards.
- POPLAWSKI SR, JOHN ANCgranted 2005-04-26cancelled 2011-07-06
Successor callsigns
Callsigns held now by people who previously held WB4UFO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WB4UFO, oldest first.
- NORWOOD, LYNNE D FL1996-03-05 → cancelled 2008-03-06
- POPLAWSKI SR, JOHN A NC2021-04-12 active