Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4UGM callsign genealogy
Currently held by Cash, Richard B
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 W4UGM's current licensee, walking backwards.
- Cash, Richard BSCgranted 2025-01-08cancelled 2025-01-28
Successor callsigns
Callsigns held now by people who previously held W4UGM.
- CASH, RICHARD MSCgranted 2018-01-30
All historical holders
Every license row we've seen with the callsign W4UGM, oldest first.
- CASH, RICHARD M SC2000-05-05 → cancelled 2008-03-28
- Cash, Richard B SC2025-01-28 active