K3ABZ
Active1x3District 3
Competitive callsign — 5 applications filed with the FCC.
License HolderSerio, Mark R
License ClassAmateur Extra
Min. Class RequiredGeneral
LocationLutherville Timonium, MD
Grant DateJul 25, 2023
Expiration DateJul 25, 2033
K3ABZ is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Serio, Mark R in Lutherville Timonium, MD. This callsign has attracted significant interest in the amateur radio community, with 5 vanity applications filed with the FCC. The most recent was submitted by Serio, Mark R on Jul 5, 2023. K3ABZ has 4 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ...-- .- -... --..
CW Weight: 34 units(Moderate)
Voice Phonetics
Kilo Three Alpha Bravo Zulu
Readability: 8/10(High readability)
License History
- License ModifiedSep 15, 2025
- License ModifiedAug 1, 2023
- License IssuedJul 25, 2023
- Vanity Callsign GrantedJul 25, 2023
Vanity Application Activity
Competing applications filed with the FCC for this callsign.