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

KO4WOK

Cancelled

Groccia, David S

Location: Falls Church, VA
Class: Amateur Extra
Granted: 2022-02-08
Expires: 2032-02-08
FRN: 0031831753

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Vanity availability

550d

Available on 2028-03-13

KO4WOK cancelled on 2026-03-14. Hold ends in 550 days.

Last held by Groccia, David S (VA).

Confidence: High

Cancelled licenses begin the 2-year hold immediately on the cancellation date, so this is the firm release date per §97.19.

Callsign genealogy

Prior holders later became

W9DSGactive· E
Groccia, David SVAgranted 2026-03-14

License history

0 events

No recorded events.

More vanity slots coming available

From Virginia

KK4LMX 2026-09-10
KQ4GPU 2026-09-10
KG4VBI 2026-09-12
W4CVH 2026-09-12
KQ4URY 2026-09-13

Starting with KO4

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 →