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KP4MFO

Available2x3District 4

Competitive callsign — 1 application filed with the FCC.

License HolderFigueroa-Ostolaza, Melvin

License ClassAmateur Extra

Min. Class RequiredTechnician

LocationBayamon, PR

Grant DateOct 21, 2011

Expiration DateOct 21, 2021

Cancellation DateJun 30, 2017

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KP4MFO

Available2x3District 4

Competitive callsign — 1 application filed with the FCC.

License HolderFigueroa-Ostolaza, Melvin

License ClassAmateur Extra

Min. Class RequiredTechnician

LocationBayamon, PR

Grant DateOct 21, 2011

Expiration DateOct 21, 2021

Cancellation DateJun 30, 2017

Available for ApplicationsJul 1, 2019

KP4MFO is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by Figueroa-Ostolaza, Melvin in Bayamon, PR. 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 Figueroa-Ostolaza, Melvin on Oct 3, 2011. KP4MFO has 4 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 43 units(Heavy (slower to send))

Voice Phonetics

Kilo Papa Four Mike Foxtrot Oscar

Readability: 8/10(High readability)

This callsign is available now

Requires Technician license or higher to apply for this callsign format (2x3).

License History

License CanceledJun 30, 2017
License ModifiedSep 6, 2013
License IssuedOct 21, 2011
Vanity Callsign GrantedOct 21, 2011

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Figueroa-Ostolaza, MelvinFiled Oct 3, 2011
Not awardedFCC ↗

Search external databases

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← KP4MER KP4MGN →

FCC data as of Sep 3, 2026

KP4MFO FCC Vanity Status: 1 Competing Application & History