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

KO4ZRU

Cancelled

Hoffman, William R

Location: Pinson, AL
Class: Technician
Granted: 2022-04-14
Expires: 2032-04-14
FRN: 0032219453

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Vanity availability

Available

Available now

KO4ZRU cleared its 2-year hold on 2024-05-02. Eligible for vanity application.

Last held by Hoffman, William R (AL).

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

KO2WRHactive· T
Hoffman, William RALgranted 2022-05-03

License history

0 events

No recorded events.

More vanity slots coming available

From Alabama

All →

KG4SUF 2026-09-10
KQ4TEB 2026-09-10
KQ4UQY 2026-09-10
KQ4UVF 2026-09-10
KZ4KU 2026-09-10

Starting with KO4

All →

KO4UTL FL · 2026-09-13
KO4PTL KY · 2026-09-17
KO4OSB VA · 2026-09-21
KO4TMC FL · 2026-09-21
KO4YVJ FL · 2026-09-24

Full history → Vanity availability → Callsign genealogy →