Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N9OE callsign genealogy
Currently held by Dau, William A
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 N9OE's current licensee, walking backwards.
- Dau, William AILgranted 2002-09-07cancelled 2007-12-07
Successor callsigns
Callsigns held now by people who previously held N9OE.
- Wolverton, Franklin DILgranted 2026-04-21
All historical holders
Every license row we've seen with the callsign N9OE, oldest first.
- Wolverton, Franklin D IA2002-09-10 → cancelled 2005-07-12
- Dau, William A IL2017-10-03 active