Confidence: Medium · Source: FCC ULS · As of 2026-09-09

KO4ST

Cancelled

Koch, Stuart A

Location: Port Royal, VA
Class: Amateur Extra
Granted: 2021-04-10
Expires: 2031-04-10
Previous call: KO4JJI
FRN: 0030181440

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Vanity availability

Available

Available now

KO4ST cleared its 2-year hold on 2023-09-18. Eligible for vanity application.

Last held by Koch, Stuart A (VA).

Confidence: High

Cancelled licenses begin the 2-year hold immediately, so this date is the firm release date per §97.19. Already past — fileable subject to FCC verification.

Callsign genealogy

Full chain →

Previously held by current licensee

KO4JJIcancelled· E
Koch, Stuart AVAgranted 2020-11-16cancelled 2021-04-10

Prior holders later became

KO4SAactive· E
Koch, Stuart AVAgranted 2021-09-18

License history

0 events

No recorded events.

More vanity slots coming available

From Virginia

All →

KK4LMX 2026-09-10
KQ4GPU 2026-09-10
KG4VBI 2026-09-12
W4CVH 2026-09-12
KQ4URY 2026-09-13

Starting with KO4

All →

KO4UTL FL · 2026-09-13
KO4PTL KY · 2026-09-17
KO4OSB VA · 2026-09-21
KO4TMC FL · 2026-09-21
KO4YVJ FL · 2026-09-24

Full history → Vanity availability → Callsign genealogy →