Confidence: Medium · Source: FCC ULS · As of 2026-09-14

KC4ZJU

Cancelled

THADEN SR, RONALD E

Location: SAINT PETERSBURG, FL
Class: Technician Plus
Granted: 1991-12-10
Expires: 2001-12-10
FRN: 0003132065

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Vanity availability

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KC4ZJU cleared its 2-year hold on 2002-01-20. Eligible for vanity application.

Last held by THADEN SR, RONALD E (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

N4GYGexpired· G
THADEN SR, RONALD EFLgranted 2009-12-30cancelled 2022-01-22

License history

0 events

No recorded events.

More vanity slots coming available

From Florida

All →

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Starting with KC4

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KC4GIL NJ · 2026-09-14
KC4HTM SC · 2026-09-20
KC4OYJ FL · 2026-09-21
KC4SWK KY · 2026-09-21
KC4ZGF AL · 2026-09-21

Full history → Vanity availability → Callsign genealogy →