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AI4UM

Available2x2District 4

Competitive callsign — 1 application filed with the FCC.

License HolderSARKA, ERNEST E

License ClassAmateur Extra

Min. Class RequiredGeneral

LocationSUN CITY CENTER, FL

Grant DateDec 4, 1996

Expiration DateDec 4, 2006

Cancellation DateDec 5, 2008

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AI4UM

Available2x2District 4

Competitive callsign — 1 application filed with the FCC.

License HolderSARKA, ERNEST E

License ClassAmateur Extra

Min. Class RequiredGeneral

LocationSUN CITY CENTER, FL

Grant DateDec 4, 1996

Expiration DateDec 4, 2006

Cancellation DateDec 5, 2008

Available for ApplicationsDec 5, 2008

AI4UM is a highly sought-after 2x2 format amateur radio callsign. The license is currently held by SARKA, ERNEST E in SUN CITY CENTER, FL. 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 GILMORE, DONALD D on May 19, 2011. AI4UM has 1 recorded FCC license history event.

CW & Voice Analysis

Morse Code

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

CW Weight: 24 units(Light (fast to send))

Voice Phonetics

Alpha India Four Uniform Mike

Readability: 7.5/10(High readability)

This callsign is available now

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

License History

License ExpiredDec 5, 2008

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

GILMORE, DONALD DFiled May 19, 2011
Not awardedFCC ↗

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FCC data as of Sep 3, 2026

AI4UM FCC Vanity Status: 1 Competing Application & History