Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WN7O callsign genealogy
Currently held by Labrum, Schuyler
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 WN7O's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held WN7O.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WN7O, oldest first.
- WASBAUER, KEVIN M ID1988-05-03 → cancelled 2000-05-05
- Crocker Jr, Kenneth R OR2012-08-31 → cancelled 2024-11-22
- Labrum, Schuyler UT2024-12-13 active