CFCallsignFinder

Search Watchlist

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

Legal & Info

Pricing FAQ Terms of Service Privacy Policy

© 2026 CallsignFinder. All rights reserved.

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

Watchlist Search Account

Home/Search/N3SK

← Back to results

N3SK

Active1x2District 3

Competitive callsign — 5 applications filed with the FCC.

License HolderRUDY, GEORGE B

License ClassAmateur Extra

Min. Class RequiredAmateur Extra

LocationSAN FRANCISCO, CA

Grant DateSep 4, 2019

Expiration DateOct 16, 2029

N3SK is a highly sought-after 1x2 format amateur radio callsign. The license is currently held by RUDY, GEORGE B in SAN FRANCISCO, CA. This callsign has attracted significant interest in the amateur radio community, with 5 vanity applications filed with the FCC. The most recent was submitted by RUDY, GEORGE B on Sep 28, 2009. N3SK has 5 recorded FCC license history events.

CW & Voice Analysis

Morse Code

-. ...-- ... -.-

CW Weight: 23 units(Light (fast to send))

Voice Phonetics

November Three Sierra Kilo

Readability: 7.5/10(High readability)

License History

License RenewedSep 4, 2019
Administrative Update AppliedSep 21, 2011
License IssuedOct 16, 2009
Vanity Callsign GrantedOct 16, 2009
License ExpiredAug 22, 2009

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

RUDY, GEORGE BFiled Sep 28, 2009
Not awardedFCC ↗
VAUGHN JR, JOSEPH FFiled Aug 31, 2009
Not awardedFCC ↗
Baker, Steven AFiled Aug 3, 2009
Not awardedFCC ↗
Dansevicus, David MFiled Aug 3, 2009

Search external databases

QRZ ↗HamQTH ↗

Explore nearby callsigns

← N3SJ N3SL →

FCC data as of Sep 11, 2026

Not awarded

Krol Sr, Stanley JFiled Apr 22, 2008

Not awardedFCC ↗

N3SK FCC Vanity Status: 5 Competing Applications & History