Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WU7O callsign genealogy
Currently held by St. Aubin, Joseph E
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 WU7O's current licensee, walking backwards.
- Howard, Gregory RORgranted 2004-11-18cancelled 2005-03-12
Successor callsigns
Callsigns held now by people who previously held WU7O.
All historical holders
Every license row we've seen with the callsign WU7O, oldest first.
- St. Aubin, Joseph E WA2002-08-09 → cancelled 2002-09-06
- Howard, Gregory R OR2025-04-18 active