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KC4MMS

Available2x3District 4

Competitive callsign — 1 application filed with the FCC.

License HolderLeach, William G

License ClassGeneral

Min. Class RequiredTechnician

LocationForest Grove, OR

Grant DateOct 5, 1999

Expiration DateDec 19, 2009

Cancellation DateDec 20, 2011

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KC4MMS

Available2x3District 4

Competitive callsign — 1 application filed with the FCC.

License HolderLeach, William G

License ClassGeneral

Min. Class RequiredTechnician

LocationForest Grove, OR

Grant DateOct 5, 1999

Expiration DateDec 19, 2009

Cancellation DateDec 20, 2011

Available for ApplicationsDec 20, 2011

KC4MMS is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by Leach, William G in Forest Grove, OR. 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 Monrovia Middle School ARC on Aug 10, 2017. KC4MMS has 3 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 37 units(Moderate)

Voice Phonetics

Kilo Charlie Four Mike Mike Sierra

Readability: 8/10(High readability)

This callsign is available now

Requires Technician license or higher to apply for this callsign format (2x3).

License History

License ExpiredDec 20, 2011
Authorization PrintedJan 10, 2009
License RenewedOct 5, 1999

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Monrovia Middle School ARCFiled Aug 10, 2017
Not awardedFCC ↗

Search external databases

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FCC data as of Sep 15, 2026

KC4MMS FCC Vanity Status: 1 Competing Application & History