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

KO4KJS

Cancelled

Caballero, Carlos F

Location: Hialeah, FL
Class: General
Granted: 2020-12-22
Expires: 2030-12-22
FRN: 0003126448

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Vanity availability

Available

Available now

KO4KJS cleared its 2-year hold on 2023-01-19. Eligible for vanity application.

Last held by Caballero, Carlos F (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

N4IVWactive· G
Caballero, Carlos FFLgranted 2021-01-19

License history

0 events

No recorded events.

More vanity slots coming available

From Florida

All →

K4CYG 2026-09-10
K4YDD 2026-09-10
KG4QXI 2026-09-10
KG4RVV 2026-09-10
KG4VAB 2026-09-10

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 →