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

KO4PZW

Cancelled

Patton, David C

Location: Potomac, MD
Class: Amateur Extra
Granted: 2021-05-03
Expires: 2031-05-03
FRN: 0030812119

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Vanity availability

Available

Available now

KO4PZW cleared its 2-year hold on 2026-05-24. Eligible for vanity application.

Last held by Patton, David C (MD).

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

WZ3Dactive· E
Patton, David CMDgranted 2024-05-24

License history

0 events

No recorded events.

More vanity slots coming available

From Maryland

All →

N3JTJ 2026-09-12
KB3ZFH 2026-09-13
KC3MJH 2026-09-13
KC3ZPN 2026-09-13
KB3HRU 2026-09-18

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 →