Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W7OY callsign genealogy
Currently held by HAAS, RONALD 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 W7OY's current licensee, walking backwards.
- Haas, Ronald EORgranted 2007-03-15cancelled 2008-05-02
Successor callsigns
Callsigns held now by people who previously held W7OY.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W7OY, oldest first.
- GEISLER, LOUIS E WA1997-03-03 → cancelled 2006-04-12
- HAAS, RONALD E OR2018-03-01 active