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/KB4ST

← Back to results

KB4ST

Active2x2Zone 4

License HolderRowe, Steven D

License ClassAmateur Extra

Min. Class RequiredGeneral

Grant DateSep 16, 2025

Expiration DateSep 16, 2035

License History

License RenewedSep 16, 2025
License IssuedAug 16, 2014
Vanity Callsign GrantedAug 16, 2014
License ExpiredJul 15, 2006

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

No competing applications detected. Monitor the FCC ULS application search to verify before filing.

Explore nearby callsigns

← KB4SS KB4SU →

FCC data as of Jun 12, 2026 — may be delayed

KB4ST — CallsignFinder.com