Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4FU callsign genealogy
Currently held by Howard, Mark
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 W4FU's current licensee, walking backwards.
- Howard, MarkGAgranted 2016-07-25cancelled 2020-02-25
Successor callsigns
Callsigns held now by people who previously held W4FU.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4FU, oldest first.
- OHIO VALLEY AMATEUR RADIO ASSN OH2007-12-27 → cancelled 2019-02-04
- Howard, Mark GA2020-02-25 active