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K1MSR

Active1x3District 1

Competitive callsign — 1 application filed with the FCC.

License HolderRosenthal, Mark S

License ClassAmateur Extra

Min. Class RequiredGeneral

LocationBrunswick, ME

Grant DateJul 15, 2022

Expiration DateJul 15, 2032

K1MSR is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Rosenthal, Mark S in Brunswick, ME. 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 Rosenthal, Mark S on Jun 27, 2022. K1MSR has 2 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 34 units(Moderate)

Voice Phonetics

Kilo One Mike Sierra Romeo

Readability: 7.5/10(High readability)

License History

License IssuedJul 15, 2022
Vanity Callsign GrantedJul 15, 2022

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Rosenthal, Mark SFiled Jun 27, 2022
Not awardedFCC ↗

Search external databases

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Explore nearby callsigns

← K1MSP K1MSS →

FCC data as of Sep 3, 2026

K1MSR FCC Vanity Status: 1 Competing Application & History