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

KU4GS

Cancelled

SUNDERBRUCH, MICHAEL R

Location: INGLIS, FL
Class: Amateur Extra
Granted: 1997-05-06
Expires: 2004-09-20
Previous call: KE4RDC
FRN: 0003141868

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Vanity availability

Available

Available now

KU4GS cleared its 2-year hold on 2004-03-06. Eligible for vanity application.

Last held by SUNDERBRUCH, MICHAEL R (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 →

Previously held by current licensee

KE4RDC
no FCC ULS record on file

Prior holders later became

K4QNactive· E
SUNDERBRUCH, MICHAEL RFLgranted 2022-02-10

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 KU4

All →

KU4QM KY · 2026-10-19
KU4Y NY · 2027-01-17
KU4QL FL · 2027-01-18
KU4X AL · 2027-03-11
KU4FE AL · 2027-03-22

Full history → Vanity availability → Callsign genealogy →