Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WB9PXT callsign genealogy
Currently held by KNIGHT SR, JOSEPH 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 WB9PXT's current licensee, walking backwards.
- Knight, Joseph FVAgranted 2024-08-27cancelled 2025-06-28
Successor callsigns
Callsigns held now by people who previously held WB9PXT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WB9PXT, oldest first.
- KNIGHT SR, JOSEPH F MN2017-03-23 → cancelled 2025-04-18
- KNIGHT, JOSEPH F VA2025-06-28 active