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

KF4TZI

Cancelled

ROBERSON, FREDERICK L

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Vanity availability

Available

Available now

KF4TZI cleared its 2-year hold on 1999-10-20. Eligible for vanity application.

Last held by ROBERSON, FREDERICK L.

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

W4MRFactive
ROTTEN RADIO AMATEUR RADIO CLUBKYgranted 2017-07-25

License history

0 events

No recorded events.

More vanity slots coming available

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KF4QOP KY · 2026-11-16
KF4TYA FL · 2026-11-22

Full history → Vanity availability → Callsign genealogy →