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K0GBM

Available1x3District 0

Competitive callsign — 6 applications filed with the FCC.

License HolderMartz, Gregory B

License ClassGeneral

Min. Class RequiredGeneral

LocationDuvall, WA

Grant DateJun 2, 2007

Expiration DateJun 2, 2017

Cancellation DateMay 22, 2009

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K0GBM

Available1x3District 0

Competitive callsign — 6 applications filed with the FCC.

License HolderMartz, Gregory B

License ClassGeneral

Min. Class RequiredGeneral

LocationDuvall, WA

Grant DateJun 2, 2007

Expiration DateJun 2, 2017

Cancellation DateMay 22, 2009

Available for ApplicationsMay 23, 2011

K0GBM is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Martz, Gregory B in Duvall, WA. This callsign has attracted significant interest in the amateur radio community, with 6 vanity applications filed with the FCC. The most recent was submitted by BROWN, GRANT D on Nov 26, 2024. K0GBM has 4 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

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

Voice Phonetics

Kilo Zero Golf Bravo Mike

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 CanceledMay 22, 2009
Administrative Update AppliedNov 7, 2008
License IssuedJun 2, 2007
Vanity Callsign GrantedJun 2, 2007

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

BROWN, GRANT DFiled Nov 26, 2024
Not awardedFCC ↗
Martz, Gregory BFiled May 15, 2007
Not awardedFCC ↗
MATTOX, GILBERT BFiled Jun 27, 2000
Not awardedFCC ↗
Sachs, MariaFiled Jun 27, 2000

Search external databases

QRZ ↗HamQTH ↗

Explore nearby callsigns

← K0GBH K0GBP →

FCC data as of Sep 4, 2026

Not awarded

FCC ↗

MATTOX, GILBERT BFiled Jun 13, 2000

DismissedFCC ↗

WAKATA, KOICHIFiled Jun 13, 2000

DismissedFCC ↗

K0GBM FCC Vanity Status: 6 Competing Applications & History