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AI4SB

Available2x2District 4

Competitive callsign — 2 applications filed with the FCC.

License HolderNAKAMURA, FRANCIS T

License ClassAmateur Extra

Min. Class RequiredGeneral

LocationCHARLOTTE, NC

Grant DateAug 2, 2005

Expiration DateAug 2, 2015

Cancellation DateFeb 8, 2007

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AI4SB

Available2x2District 4

Competitive callsign — 2 applications filed with the FCC.

License HolderNAKAMURA, FRANCIS T

License ClassAmateur Extra

Min. Class RequiredGeneral

LocationCHARLOTTE, NC

Grant DateAug 2, 2005

Expiration DateAug 2, 2015

Cancellation DateFeb 8, 2007

Available for ApplicationsFeb 9, 2009

AI4SB is a highly sought-after 2x2 format amateur radio callsign. The license is currently held by NAKAMURA, FRANCIS T in CHARLOTTE, NC. 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 BRUTCHER JR, SAMUEL P on Dec 5, 2023. AI4SB has 3 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 22 units(Light (fast to send))

Voice Phonetics

Alpha India Four Sierra Bravo

Readability: 7/10(Good readability)

This callsign is available now

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

License History

License CanceledFeb 8, 2007
License IssuedSep 29, 2006
System-Generated GrantSep 29, 2006

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

BRUTCHER JR, SAMUEL PFiled Dec 5, 2023
Not awardedFCC ↗
BRIDGES, WINBURN SFiled May 17, 2002
Not awardedFCC ↗

Search external databases

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FCC data as of Sep 3, 2026

AI4SB FCC Vanity Status: 2 Competing Applications & History