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

KC9OS

Cancelled

RYSNER, ROBERT F

Location: NAPLES, FL
Class: Advanced
Granted: 2008-10-03
Expires: 2018-12-29
FRN: 0007032733

Get notified about status changes and vanity availability for this callsign.

Vanity availability

Available

Available now

KC9OS cleared its 2-year hold on 2018-02-11. Eligible for vanity application.

Last held by RYSNER, ROBERT 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

KC4OSactive· A
RYSNER, ROBERT FFLgranted 2025-12-16

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 KC9

All →

KC9CKD IN · 2026-09-10
KC9WOC IL · 2026-09-10
KC9CJI IL · 2026-09-11
KC9WOD IL · 2026-09-11
KC9WOF IL · 2026-09-11

Full history → Vanity availability → Callsign genealogy →