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K4RPB

Active1x3District 4

Competitive callsign — 1 application filed with the FCC.

License HolderGrunseich, Vincent

License ClassGeneral

Min. Class RequiredGeneral

Locationronkonkoma, NY

Grant DateMay 6, 2025

Expiration DateMay 6, 2035

K4RPB is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Grunseich, Vincent in ronkonkoma, NY. 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 Boretti, Raymond P on Apr 17, 2025. K4RPB has 3 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 33 units(Moderate)

Voice Phonetics

Kilo Four Romeo Papa Bravo

Readability: 7.5/10(High readability)

License History

Administrative Update AppliedJan 22, 2026
License IssuedMay 6, 2025
Vanity Callsign GrantedMay 6, 2025

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Boretti, Raymond PFiled Apr 17, 2025
Not awardedFCC ↗

Search external databases

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Explore nearby callsigns

← K4RPA K4RPC →

FCC data as of Sep 3, 2026

K4RPB FCC Vanity Status: 1 Competing Application & History