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W1OSH

Available1x3District 1

Competitive callsign — 1 application filed with the FCC.

License HolderMook, Michael R

License ClassTechnician

Min. Class RequiredGeneral

LocationSherman Oaks, CA

Grant DateApr 15, 2014

Expiration DateApr 15, 2024

Cancellation DateMay 6, 2016

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W1OSH

Available1x3District 1

Competitive callsign — 1 application filed with the FCC.

License HolderMook, Michael R

License ClassTechnician

Min. Class RequiredGeneral

LocationSherman Oaks, CA

Grant DateApr 15, 2014

Expiration DateApr 15, 2024

Cancellation DateMay 6, 2016

Available for ApplicationsMay 7, 2018

W1OSH is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Mook, Michael R in Sherman Oaks, 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 Mook, Michael R on Mar 26, 2014. W1OSH has 6 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 36 units(Moderate)

Voice Phonetics

Whiskey One Oscar Sierra Hotel

Readability: 7.5/10(High readability)

This callsign is available now

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

License History

License CanceledMay 6, 2016
Administrative Update AppliedFeb 23, 2016
Administrative Update AppliedDec 3, 2015
Administrative Update AppliedSep 9, 2014
License IssuedApr 15, 2014
Vanity Callsign GrantedApr 15, 2014

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Mook, Michael RFiled Mar 26, 2014
Not awardedFCC ↗

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FCC data as of Sep 3, 2026

W1OSH FCC Vanity Status: 1 Competing Application & History