Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WO1FIN callsign genealogy
Currently held by Southwell, Sean M
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 WO1FIN's current licensee, walking backwards.
- Southwell, Sean MVAgranted 2023-08-26cancelled 2023-09-15
Successor callsigns
Callsigns held now by people who previously held WO1FIN.
No current licensee on record previously held this callsign.