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K4UBS

Active1x3District 4

Competitive callsign — 2 applications filed with the FCC.

License HolderPfeiffer, James E

License ClassTechnician

Min. Class RequiredGeneral

LocationMilton, FL

Grant DateFeb 27, 2018

Expiration DateMay 13, 2028

K4UBS is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Pfeiffer, James E in Milton, FL. This callsign has attracted significant interest in the amateur radio community, with 2 vanity applications filed with the FCC. The most recent was submitted by Pfeiffer, James E on Apr 23, 2008. K4UBS has 4 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

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

Voice Phonetics

Kilo Four Uniform Bravo Sierra

Readability: 7/10(Good readability)

License History

License RenewedFeb 27, 2018
Administrative Update AppliedFeb 9, 2018
License IssuedMay 13, 2008
Vanity Callsign GrantedMay 13, 2008

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Pfeiffer, James EFiled Apr 23, 2008
Not awardedFCC ↗
VanGilder, Braydon JFiled Apr 23, 2008
Not awardedFCC ↗

Search external databases

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FCC data as of Sep 4, 2026

K4UBS FCC Vanity Status: 2 Competing Applications & History