Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4RHD callsign genealogy
Currently held by Donovan Jr, Ralph H
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 W4RHD's current licensee, walking backwards.
- Donovan Jr, Ralph HALgranted 2006-02-15cancelled 2007-03-06
Successor callsigns
Callsigns held now by people who previously held W4RHD.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4RHD, oldest first.
- MOCK, GENE V AR1994-08-10 → cancelled 2006-08-11
- Donovan Jr, Ralph H AL2017-03-07 active