K0DTR
Available1x3District 0
Competitive callsign — 1 application filed with the FCC.
License HolderHARPER, JOHN A
License ClassGeneral
Min. Class RequiredGeneral
LocationFRANKFORT, KS
Grant DateSep 21, 2011
Expiration DateNov 19, 2021
Cancellation DateNov 21, 2023
Available for ApplicationsNov 20, 2023
K0DTR is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by HARPER, JOHN A in FRANKFORT, KS. 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 Ball, Ken W on Mar 4, 2026. K0DTR has 4 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ----- -.. - .-.
CW Weight: 35 units(Moderate)
Voice Phonetics
Kilo Zero Delta Tango Romeo
Readability: 7/10(Good readability)
This callsign is available now
Requires General license or higher to apply for this callsign format (1x3).
License History
- License ExpiredNov 21, 2023
- License RenewedSep 21, 2011
- Tax ID (TIN) AddedAug 22, 2001
- License RenewedAug 22, 2001
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- Ball, Ken WFiled Mar 4, 2026Not awardedFCC ↗