Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WW7OR callsign genealogy
Currently held by THREE RIVERS DX CLUB
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 WW7OR's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held WW7OR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WW7OR, oldest first.
- THREE RIVERS DX CLUB OR2007-12-04 → cancelled 2019-08-06
- DeBuhr, William M OR2022-06-11 active