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K9MBO

Available1x3District 9

Competitive callsign — 1 application filed with the FCC.

License HolderCACIOPPO, STEVEN J

License ClassTechnician

Min. Class RequiredGeneral

LocationLOS ANGELES, CA

Grant DateJan 7, 1999

Expiration DateJan 7, 2009

Cancellation DateMar 25, 2008

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K9MBO

Available1x3District 9

Competitive callsign — 1 application filed with the FCC.

License HolderCACIOPPO, STEVEN J

License ClassTechnician

Min. Class RequiredGeneral

LocationLOS ANGELES, CA

Grant DateJan 7, 1999

Expiration DateJan 7, 2009

Cancellation DateMar 25, 2008

Available for ApplicationsMar 26, 2010

K9MBO is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by CACIOPPO, STEVEN J in LOS ANGELES, CA. 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 Bolin, Justin M on May 30, 2023. K9MBO has 4 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 41 units(Heavy (slower to send))

Voice Phonetics

Kilo Nine Mike Bravo Oscar

Readability: 8.5/10(High readability)

This callsign is available now

Requires General license or higher to apply for this callsign format (1x3).

License History

License CanceledMar 25, 2008
Administrative Update AppliedJan 31, 2008
Administrative Update AppliedNov 24, 2007
Administrative Update AppliedJun 13, 2006

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Bolin, Justin MFiled May 30, 2023
Not awardedFCC ↗

Search external databases

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Explore nearby callsigns

← K9MBL K9MBQ →

FCC data as of Jul 31, 2026

K9MBO FCC Vanity Status: 1 Competing Application & History