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K4NFA

Active1x3District 4

Competitive callsign — 3 applications filed with the FCC.

License HolderOBrien, Michael C

License ClassAmateur Extra

Min. Class RequiredGeneral

LocationMaurertown, VA

Grant DateAug 7, 2018

Expiration DateAug 7, 2028

K4NFA is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by OBrien, Michael C in Maurertown, VA. This callsign has attracted significant interest in the amateur radio community, with 3 vanity applications filed with the FCC. The most recent was submitted by OBrien, Michael C on Jun 30, 2008. K4NFA has 4 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 28 units(Light (fast to send))

Voice Phonetics

Kilo Four November Foxtrot Alpha

Readability: 7.5/10(High readability)

License History

License RenewedAug 7, 2018
License ModifiedAug 15, 2008
License IssuedJul 18, 2008
Vanity Callsign GrantedJul 18, 2008

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

OBrien, Michael CFiled Jun 30, 2008
Not awardedFCC ↗
DONAHUE, JEFFREY LFiled Aug 17, 2000
Not awardedFCC ↗
SPARKS, SALLY IFiled Aug 17, 2000
Not awardedFCC ↗

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FCC data as of Sep 3, 2026

K4NFA FCC Vanity Status: 3 Competing Applications & History