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N4USD

Active1x3District 4

Competitive callsign — 5 applications filed with the FCC.

License HolderSwanson, Mark H

License ClassTechnician

Min. Class RequiredGeneral

LocationWoodbury, MN

Grant DateJun 28, 2025

Expiration DateJun 28, 2035

N4USD is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Swanson, Mark H in Woodbury, MN. 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 Williams, David J on Jun 10, 2025. N4USD has 6 recorded FCC license history events.

CW & Voice Analysis

Morse Code

-. ....- ..- ... -..

CW Weight: 24 units(Light (fast to send))

Voice Phonetics

November Four Uniform Sierra Delta

Readability: 6.5/10(Good readability)

License History

Administrative Update AppliedJul 1, 2025
License IssuedJun 28, 2025
Vanity Callsign GrantedJun 28, 2025
License ExpiredDec 18, 2020
Tax ID (TIN) AddedSep 18, 2008
License RenewedSep 18, 2008

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Williams, David JFiled Jun 10, 2025
Not awardedFCC ↗
JONES mr., GARY RFiled Jan 10, 2024
DismissedFCC ↗
JONES, GARY RFiled Jan 4, 2024
DismissedFCC ↗
JONES, GARY RFiled Jan 4, 2024

Search external databases

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FCC data as of Sep 12, 2026 — may be delayed

Not awarded

Cai, BaiyiFiled May 11, 2021

Not awardedFCC ↗

N4USD FCC Vanity Status: 5 Competing Applications & History