Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W0NUT callsign genealogy
Currently held by Houston Jr, Tom H
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 W0NUT's current licensee, walking backwards.
- Houston Jr, Tom HCOgranted 2019-04-17cancelled 2019-05-21
Successor callsigns
Callsigns held now by people who previously held W0NUT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W0NUT, oldest first.
- SUMMERS, FRANK O MO1997-01-02 → cancelled 2009-01-03
- Houston Jr, Tom H CO2019-05-21 active