N4DUN
Available1x3District 4
Competitive callsign — 3 applications filed with the FCC.
License HolderTOMS, LOWELL L
License ClassAmateur Extra
Min. Class RequiredGeneral
LocationCOLUMBUS, OH
Grant DateSep 17, 2010
Expiration DateNov 6, 2020
Cancellation DateNov 8, 2022
Available for ApplicationsNov 7, 2022
N4DUN is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by TOMS, LOWELL L in COLUMBUS, OH. This callsign has attracted significant interest in the amateur radio community, with 3 vanity applications filed with the FCC. The most recent was submitted by Harper, Charlotte G on Nov 24, 2025. N4DUN has 6 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-. ....- -.. ..- -.
CW Weight: 25 units(Light (fast to send))
Voice Phonetics
November Four Delta Uniform November
Readability: 6.5/10(Good readability)
This callsign is available now
Requires General license or higher to apply for this callsign format (1x3).
License History
- License ExpiredNov 8, 2022
- License ModifiedAug 25, 2015
- License ModifiedAug 3, 2015
- License RenewedSep 17, 2010
- Tax ID (TIN) AddedAug 24, 2001
- License RenewedAug 24, 2001
Vanity Application Activity
Competing applications filed with the FCC for this callsign.