AD4RX
Available2x2District 4
Competitive callsign — 1 application filed with the FCC.
License HolderOLSON, ROGER K
License ClassAmateur Extra
Min. Class RequiredGeneral
LocationTARPON SPRINGS, FL
Grant DateFeb 28, 2014
Expiration DateMay 17, 2024
Cancellation DateMay 19, 2026
Available for ApplicationsMay 18, 2026
AD4RX is a highly sought-after 2x2 format amateur radio callsign. The license is currently held by OLSON, ROGER K in TARPON SPRINGS, FL. This callsign has attracted significant interest in the amateur radio community, with 1 vanity application filed with the FCC. The most recent was submitted by Dorn, Andrew J on May 30, 2025. AD4RX has 4 recorded FCC license history events.
CW & Voice Analysis
Morse Code
.- -.. ....- .-. -..-
CW Weight: 29 units(Light (fast to send))
Voice Phonetics
Alpha Delta Four Romeo X-ray
Readability: 7.5/10(High readability)
This callsign is available now
Requires General license or higher to apply for this callsign format (2x2).
License History
- License ExpiredMay 19, 2026
- License RenewedFeb 28, 2014
- License RenewedMay 13, 2004
- FRN Association Letter SentMay 13, 2004
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- Dorn, Andrew JFiled May 30, 2025DismissedFCC ↗