Home/Search/KJ4OIA

KJ4OIA

Available2x3District 4

No competing applications on record.

License HolderKarsner, William S

License ClassGeneral

Min. Class RequiredTechnician

LocationSpring City, TN

Grant DateAug 14, 2009

Expiration DateAug 14, 2019

Cancellation DateAug 17, 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/KJ4OIA

← Back to results

KJ4OIA

Available2x3District 4

No competing applications on record.

License HolderKarsner, William S

License ClassGeneral

Min. Class RequiredTechnician

LocationSpring City, TN

Grant DateAug 14, 2009

Expiration DateAug 14, 2019

Cancellation DateAug 17, 2021

Available for ApplicationsAug 15, 2021

KJ4OIA is a 2x3 format amateur radio callsign. It is currently registered to Karsner, William S in Spring City, TN. 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: 39 units(Moderate)

Voice Phonetics

Kilo Juliet Four Oscar India Alpha

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 ExpiredAug 17, 2021
License ModifiedNov 23, 2009
System-Generated GrantAug 14, 2009
License IssuedAug 14, 2009

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

← KJ4OHZ KJ4OIB →

FCC data as of Sep 12, 2026

Is KJ4OIA Available? FCC Vanity Status & Watchlist