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

WB4USF

Expired

OLSON, MARVIN S

Location: MIAMI SPRINGS, FL
Class: Amateur Extra
Granted: 1996-03-20
Expires: 2006-03-20
FRN: 0031906969

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Vanity availability

Available

Available now

WB4USF cleared its 2-year hold on 2026-05-21. Eligible for vanity application.

Last held by Amateur Radio Club at USF (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

KO4ZRQcancelled
Amateur Radio Club At USFFLgranted 2022-04-14cancelled 2022-05-06

Prior holders later became

W4USFactive
Amateur Radio Club at USFFLgranted 2024-05-21

License history

0 events

No recorded events.

More vanity slots coming available

From Florida

All →

K4HCL 2026-09-09
KG4UZU 2026-09-09
KG4UZX 2026-09-09
KK4LMR 2026-09-09
W3EFZ 2026-09-09

Starting with WB4

All →

WB4ZXT TN · 2026-09-12
WB4WCR MS · 2026-10-05
WB4IER FL · 2026-10-12
WB4VWZ FL · 2026-10-26
WB4CDD NC · 2026-11-02

Full history → Vanity availability → Callsign genealogy →