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KP4MK

Available2x2District 4

Competitive callsign — 6 applications filed with the FCC.

License HolderROSADO, MITCHELL A

License ClassAmateur Extra

Min. Class RequiredGeneral

LocationLARES, PR

Grant DateMay 12, 2015

Expiration DateMay 12, 2025

Cancellation DateSep 23, 2017

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KP4MK

Available2x2District 4

Competitive callsign — 6 applications filed with the FCC.

License HolderROSADO, MITCHELL A

License ClassAmateur Extra

Min. Class RequiredGeneral

LocationLARES, PR

Grant DateMay 12, 2015

Expiration DateMay 12, 2025

Cancellation DateSep 23, 2017

Available for ApplicationsSep 24, 2019

KP4MK is a highly sought-after 2x2 format amateur radio callsign. The license is currently held by ROSADO, MITCHELL A in LARES, PR. This callsign has attracted significant interest in the amateur radio community, with 6 vanity applications filed with the FCC. The most recent was submitted by Rivera, Victor J on Jun 1, 2026. KP4MK has 3 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 35 units(Moderate)

Voice Phonetics

Kilo Papa Four Mike Kilo

Readability: 8.5/10(High readability)

This callsign is available now

Requires General license or higher to apply for this callsign format (2x2).

License History

License CanceledSep 23, 2017
License IssuedMay 12, 2015
Vanity Callsign GrantedMay 12, 2015

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Rivera, Victor JFiled Jun 1, 2026
Not awardedFCC ↗
ROSADO, MITCHELL AFiled Apr 24, 2015
Not awardedFCC ↗
KLINGER, MARTIN FFiled Aug 30, 2013
Not awardedFCC ↗
Rodrigues-Hernandez, Israel DFiled Apr 30, 2004

Search external databases

QRZ ↗HamQTH ↗

Explore nearby callsigns

← KP4MJ KP4MM →

FCC data as of Sep 3, 2026

DismissedFCC ↗

LENZO, ANTHONYFiled Apr 30, 2004

Not awardedFCC ↗

Rodrigues-Hernandez, Israel DFiled Apr 30, 2004

Not awardedFCC ↗

KP4MK FCC Vanity Status: 6 Competing Applications & History