Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9SWB callsign genealogy
Currently held by SCHOLZ, LEO F
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 W9SWB's current licensee, walking backwards.
- Postel, Dennis TTXgranted 2019-09-03cancelled 2019-09-21
Successor callsigns
Callsigns held now by people who previously held W9SWB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W9SWB, oldest first.
- SCHOLZ, LEO F TX1998-05-12 → cancelled 2010-05-13
- Postel, Dennis T TX2019-09-21 active