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

KF4YJR

Cancelled

OSBORNE, MARK E

Location: OWENSBORO, KY
Class: Amateur Extra
Granted: 1998-05-11
Expires: 2008-05-11
FRN: 0002671683

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Vanity availability

Available

Available now

KF4YJR cleared its 2-year hold on 2002-07-04. Eligible for vanity application.

Last held by OSBORNE, MARK E (KY).

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

K4LBactive· E
OSBORNE, MARK EKYgranted 2020-04-14

License history

0 events

No recorded events.

More vanity slots coming available

From Kentucky

All →

KD4STD 2026-09-10
KK4LMT 2026-09-10
KG4VAS 2026-09-11
KG4VAT 2026-09-11
K4OTU 2026-09-14

Starting with KF4

All →

KF4WUR VA · 2026-10-01
KF4BCO FL · 2026-10-09
KF4WLA FL · 2026-10-11
KF4QOP KY · 2026-11-16
KF4TYA FL · 2026-11-22

Full history → Vanity availability → Callsign genealogy →