KU3O
Active2x1District 3
Competitive callsign — 12 applications filed with the FCC.
License HolderEPISCOPO, MARK J
License ClassAmateur Extra
Min. Class RequiredAmateur Extra
LocationNorristown, PA
Grant DateDec 23, 2023
Expiration DateNov 26, 2033
KU3O is a highly sought-after 2x1 format amateur radio callsign. The license is currently held by EPISCOPO, MARK J in Norristown, PA. This callsign has attracted significant interest in the amateur radio community, with 12 vanity applications filed with the FCC. The most recent was submitted by ROSEMEYER, JASON on Sep 22, 2026. KU3O has 11 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ..- ...-- ---
CW Weight: 30 units(Light (fast to send))
Voice Phonetics
Kilo Uniform Three Oscar
Readability: 8/10(High readability)
License History
- License RenewedDec 23, 2023
- Administrative Update AppliedApr 28, 2020
- Administrative Update AppliedApr 28, 2020
- Administrative Update AppliedMar 19, 2019
- License IssuedNov 26, 2013
- Vanity Callsign GrantedNov 26, 2013
- License CanceledNov 28, 2010
- License RenewedAug 8, 2008
- Administrative Update AppliedJul 16, 2008
- Administrative Update AppliedSep 7, 2005
- Administrative Update AppliedNov 20, 2001
Vanity Application Activity
Competing applications filed with the FCC for this callsign.