K3RZ
Active1x2District 3
Competitive callsign — 15 applications filed with the FCC.
License HolderMcSwain, Jack R
License ClassAmateur Extra
Min. Class RequiredAmateur Extra
LocationOklahoma City, OK
Grant DateNov 26, 2025
Expiration DateFeb 6, 2036
K3RZ is a highly sought-after 1x2 format amateur radio callsign. The license is currently held by McSwain, Jack R in Oklahoma City, OK. This callsign has attracted significant interest in the amateur radio community, with 15 vanity applications filed with the FCC. The most recent was submitted by MURAI, KAZUNORI on Jan 25, 2016. K3RZ has 6 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ...-- .-. --..
CW Weight: 29 units(Light (fast to send))
Voice Phonetics
Kilo Three Romeo Zulu
Readability: 8/10(High readability)
License History
- License RenewedNov 26, 2025
- Administrative Update AppliedMar 13, 2018
- License IssuedFeb 6, 2016
- Vanity Callsign GrantedFeb 6, 2016
- License ExpiredJan 19, 2016
- Tax ID (TIN) AddedJan 8, 2004
Vanity Application Activity
Competing applications filed with the FCC for this callsign.