W1SSS
Active1x3District 1
Competitive callsign — 7 applications filed with the FCC.
License HolderKOERNER, LEO A
License ClassAmateur Extra
Min. Class RequiredGeneral
LocationCambridge, MA
Grant DateAug 1, 2020
Expiration DateAug 1, 2030
W1SSS is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by KOERNER, LEO A in Cambridge, MA. This callsign has attracted significant interest in the amateur radio community, with 7 vanity applications filed with the FCC. The most recent was submitted by Koerner, Leo A on Jul 14, 2020. W1SSS has 12 recorded FCC license history events.
CW & Voice Analysis
Morse Code
.-- .---- ... ... ...
CW Weight: 29 units(Light (fast to send))
Voice Phonetics
Whiskey One Sierra Sierra Sierra
Readability: 6.5/10(Good readability)
License History
- Administrative Update AppliedMar 7, 2026
- License ModifiedJun 11, 2021
- Vanity Callsign GrantedAug 1, 2020
- License IssuedAug 1, 2020
- License CanceledSep 20, 2016
- License ModifiedSep 2, 2016
- Administrative Update AppliedAug 2, 2016
- Administrative Update AppliedJul 29, 2016
- License RenewedJun 20, 2012
- Administrative Update AppliedJun 10, 2008
- License IssuedMar 8, 2002
- Vanity Callsign Granted
Vanity Application Activity
Competing applications filed with the FCC for this callsign.