Home/Search/KO4ILU

KO4ILU

Available2x3District 4

No competing applications on record.

License HolderSt John, Michael S

License ClassTechnician

Min. Class RequiredTechnician

LocationSan Rafael, CA

Grant DateOct 19, 2020

Expiration DateOct 19, 2030

Cancellation DateJul 20, 2021

CallsignFinder

Track FCC amateur radio vanity callsign availability. Data updated daily.

Legal & Info

Pricing FAQ Terms of Service Privacy Policy

FCC data sourced from FCC Universal Licensing System. Not affiliated with the FCC.

Watchlist Search Account

Home/Search/KO4ILU

← Back to results

KO4ILU

Available2x3District 4

No competing applications on record.

License HolderSt John, Michael S

License ClassTechnician

Min. Class RequiredTechnician

LocationSan Rafael, CA

Grant DateOct 19, 2020

Expiration DateOct 19, 2030

Cancellation DateJul 20, 2021

Available for ApplicationsJul 21, 2023

KO4ILU is a 2x3 format amateur radio callsign. It is currently registered to St John, Michael S in San Rafael, CA. 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: 36 units(Moderate)

Voice Phonetics

Kilo Oscar Four India Lima Uniform

Readability: 6.5/10(Good readability)

This callsign is available now

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

License History

License CanceledJul 20, 2021
License ModifiedMar 15, 2021
System-Generated GrantOct 19, 2020
License IssuedOct 19, 2020

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.

Search external databases

QRZ ↗HamQTH ↗

Explore nearby callsigns

← KO4ILT KO4ILV →

FCC data as of Sep 4, 2026

Is KO4ILU Available? FCC Vanity Status & Watchlist