Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W0UGM callsign genealogy
Currently held by Riley, Daniel P
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 W0UGM's current licensee, walking backwards.
- Riley, Daniel PSDgranted 2010-12-29cancelled 2011-05-10
Successor callsigns
Callsigns held now by people who previously held W0UGM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W0UGM, oldest first.
- RILEY SR, JEROME F FL2003-04-28 → cancelled 2011-04-04
- Riley, Daniel P SD2021-03-11 active