Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4RVY callsign genealogy
Currently held by Yu Tiamco, Ronald F
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 K4RVY's current licensee, walking backwards.
- Yu Tiamco, Ronald FALgranted 2017-12-20cancelled 2018-01-13
Successor callsigns
Callsigns held now by people who previously held K4RVY.
No current licensee on record previously held this callsign.