Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4RMM callsign genealogy
Currently held by Mediavilla Maldonado, Ricardo
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 W4RMM's current licensee, walking backwards.
- Mediavilla Maldonado, RicardoVAgranted 2021-05-28cancelled 2021-08-20
Successor callsigns
Callsigns held now by people who previously held W4RMM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4RMM, oldest first.
- HOOPER, WILLIAM D AL2008-06-04 → cancelled 2020-06-16
- Mediavilla Maldonado, Ricardo VA2021-08-20 active