AI6U
Active2x1District 6
Competitive callsign — 1 application filed with the FCC.
License HolderWATSON, DONALD C
License ClassAmateur Extra
Min. Class RequiredAmateur Extra
LocationSACRAMENTO, CA
Grant DateJul 31, 2018
Expiration DateAug 19, 2028
AI6U is a highly sought-after 2x1 format amateur radio callsign. The license is currently held by WATSON, DONALD C in SACRAMENTO, CA. 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 Brown, David S on Mar 3, 2026. AI6U has 4 recorded FCC license history events.
CW & Voice Analysis
Morse Code
.- .. -.... ..-
CW Weight: 18 units(Ultra-light (very fast to send))
Voice Phonetics
Alpha India Six Uniform
Readability: 7.5/10(High readability)
License History
- License RenewedJul 31, 2018
- Administrative Update AppliedJul 31, 2018
- License RenewedAug 19, 2008
- FRN Association Letter SentAug 19, 2008
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- Brown, David SFiled Mar 3, 2026Not awardedFCC ↗