Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9RFU callsign genealogy
Currently held by Stewart, Douglas J
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 W9RFU's current licensee, walking backwards.
- Stewart, Douglas JILgranted 2018-03-01cancelled 2018-03-20
Successor callsigns
Callsigns held now by people who previously held W9RFU.
No current licensee on record previously held this callsign.