Confidence: Medium · Source: FCC ULS · As of 2026-09-10

KO4AEO

Cancelled

Korpershoek, Isaac S

Location: Fort Lauderdale, FL
Class: Amateur Extra
Granted: 2019-11-20
Expires: 2029-11-20
FRN: 0028917417

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Vanity availability

Available

Available now

KO4AEO cleared its 2-year hold on 2021-12-12. Eligible for vanity application.

Last held by Korpershoek, Isaac S (FL).

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 →

Prior holders later became

K4ISKactive· E
Korpershoek, Isaac SFLgranted 2019-12-13

License history

0 events

No recorded events.

More vanity slots coming available

From Florida

All →

KD4SPY 2026-09-11
KK4LOA 2026-09-11
KB1HYE 2026-09-12
KO4UTL 2026-09-13
KQ4RHZ 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 →