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KM1USR

Active2x3District 1

Competitive callsign — 1 application filed with the FCC.

License HolderMcDonald, Keith M

License ClassAmateur Extra

Min. Class RequiredTechnician

LocationPLYMOUTH, MA

Grant DateMay 1, 2020

Expiration DateMay 1, 2030

KM1USR is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by McDonald, Keith M in PLYMOUTH, MA. 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 McDonald, Keith M on Apr 13, 2020. KM1USR has 3 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 39 units(Moderate)

Voice Phonetics

Kilo Mike One Uniform Sierra Romeo

Readability: 6.5/10(Good readability)

License History

Administrative Update AppliedApr 21, 2021
License IssuedMay 1, 2020
Vanity Callsign GrantedMay 1, 2020

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

McDonald, Keith MFiled Apr 13, 2020
Not awardedFCC ↗

Search external databases

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FCC data as of Jul 29, 2026

KM1USR FCC Vanity Status: 1 Competing Application & History