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KM4YIO

Available2x3District 4

No competing applications on record.

License HolderMercer, Larry N

License ClassAmateur Extra

Min. Class RequiredTechnician

LocationBountiful, UT

Grant DateOct 17, 2016

Expiration DateOct 17, 2026

Cancellation DateNov 8, 2016

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KM4YIO

Available2x3District 4

No competing applications on record.

License HolderMercer, Larry N

License ClassAmateur Extra

Min. Class RequiredTechnician

LocationBountiful, UT

Grant DateOct 17, 2016

Expiration DateOct 17, 2026

Cancellation DateNov 8, 2016

Available for ApplicationsNov 9, 2018

KM4YIO is a 2x3 format amateur radio callsign. It is currently registered to Mercer, Larry N in Bountiful, UT. There are currently no competing vanity applications or pending FCC filings on record for this callsign. Add it to your watchlist to receive an immediate alert if another operator files a vanity application.

CW & Voice Analysis

Morse Code

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

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

Voice Phonetics

Kilo Mike Four Yankee India Oscar

Readability: 7.5/10(High readability)

This callsign is available now

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

License History

License CanceledNov 8, 2016
System-Generated GrantOct 17, 2016
License IssuedOct 17, 2016

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

No competing applications on record. Verify on the FCC ULS application search before filing.

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FCC data as of Sep 12, 2026 — may be delayed

Is KM4YIO Available? FCC Vanity Status & Watchlist