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KO4ULQ

Available2x3District 4

No competing applications on record.

License HolderCAMPOS, MARK O

License ClassAmateur Extra

Min. Class RequiredTechnician

LocationSAN DIEGO, CA

Grant DateNov 4, 2021

Expiration DateNov 4, 2031

Cancellation DateMay 21, 2022

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KO4ULQ

Available2x3District 4

No competing applications on record.

License HolderCAMPOS, MARK O

License ClassAmateur Extra

Min. Class RequiredTechnician

LocationSAN DIEGO, CA

Grant DateNov 4, 2021

Expiration DateNov 4, 2031

Cancellation DateMay 21, 2022

Available for ApplicationsMay 22, 2024

KO4ULQ is a 2x3 format amateur radio callsign. It is currently registered to CAMPOS, MARK O in SAN DIEGO, 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: 44 units(Heavy (slower to send))

Voice Phonetics

Kilo Oscar Four Uniform Lima Quebec

Readability: 7/10(Good readability)

This callsign is available now

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

License History

License CanceledMay 21, 2022
License ModifiedApr 14, 2022
License ModifiedDec 9, 2021
System-Generated GrantNov 4, 2021
License IssuedNov 4, 2021

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

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← KO4ULP KO4ULR →

FCC data as of Jul 10, 2026

Is KO4ULQ Available? FCC Vanity Status & Watchlist