Home/Search/KO4RYI

KO4RYI

Available2x3District 4

No competing applications on record.

License HolderNielsen, Palle

License ClassTechnician

Min. Class RequiredTechnician

LocationMountain View, CA

Grant DateJul 19, 2021

Expiration DateJul 19, 2031

Cancellation DateAug 10, 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/KO4RYI

← Back to results

KO4RYI

Available2x3District 4

No competing applications on record.

License HolderNielsen, Palle

License ClassTechnician

Min. Class RequiredTechnician

LocationMountain View, CA

Grant DateJul 19, 2021

Expiration DateJul 19, 2031

Cancellation DateAug 10, 2021

Available for ApplicationsAug 11, 2023

KO4RYI is a 2x3 format amateur radio callsign. It is currently registered to Nielsen, Palle in Mountain View, 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: 40 units(Moderate)

Voice Phonetics

Kilo Oscar Four Romeo Yankee India

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 CanceledAug 10, 2021
System-Generated GrantJul 19, 2021
License IssuedJul 19, 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

QRZ ↗HamQTH ↗

Explore nearby callsigns

← KO4RYH KO4RYJ →

FCC data as of Sep 4, 2026

Is KO4RYI Available? FCC Vanity Status & Watchlist