Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WW4RFU callsign genealogy
Currently held by Unger Jr, Roy F
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 WW4RFU's current licensee, walking backwards.
- Unger Jr, Roy FVAgranted 2014-02-20cancelled 2014-03-14
Successor callsigns
Callsigns held now by people who previously held WW4RFU.
No current licensee on record previously held this callsign.