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K4VLF

Active1x3District 4

Competitive callsign — 3 applications filed with the FCC.

License HolderRockenbauch, Craig A

License ClassGeneral

Min. Class RequiredGeneral

LocationSeverna Park, MD

Grant DateOct 7, 2019

Expiration DateDec 29, 2029

K4VLF is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Rockenbauch, Craig A in Severna Park, MD. 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 Phinney EE, David N on Dec 9, 2009. K4VLF has 6 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 32 units(Moderate)

Voice Phonetics

Kilo Four Victor Lima Foxtrot

Readability: 8/10(High readability)

License History

License RenewedOct 7, 2019
Administrative Update AppliedJun 29, 2011
License ModifiedMay 11, 2011
Administrative Update AppliedMay 5, 2010
License IssuedDec 29, 2009
Vanity Callsign GrantedDec 29, 2009

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Phinney EE, David NFiled Dec 9, 2009
Not awardedFCC ↗
DAILY, DEL DFiled May 30, 2000
Not awardedFCC ↗
OSBORNE, CHARLES SFiled May 30, 2000
Not awardedFCC ↗

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FCC data as of Sep 3, 2026

K4VLF FCC Vanity Status: 3 Competing Applications & History