Home/Search/KN4QOS

KN4QOS

Available2x3District 4

No competing applications on record.

License HolderBLAIR SR, CHARLES T

License ClassAmateur Extra

Min. Class RequiredTechnician

LocationAIKEN, SC

Grant DateNov 20, 2018

Expiration DateNov 20, 2028

Cancellation DateJul 1, 2022

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/KN4QOS

← Back to results

KN4QOS

Available2x3District 4

No competing applications on record.

License HolderBLAIR SR, CHARLES T

License ClassAmateur Extra

Min. Class RequiredTechnician

LocationAIKEN, SC

Grant DateNov 20, 2018

Expiration DateNov 20, 2028

Cancellation DateJul 1, 2022

Available for ApplicationsJul 2, 2024

KN4QOS is a 2x3 format amateur radio callsign. It is currently registered to BLAIR SR, CHARLES T in AIKEN, SC. 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 November Four Quebec Oscar Sierra

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 1, 2022
License ModifiedJun 21, 2022
System-Generated GrantNov 20, 2018
License IssuedNov 20, 2018

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

← KN4QOR KN4QOT →

FCC data as of Sep 12, 2026

Is KN4QOS Available? FCC Vanity Status & Watchlist