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

KO4JOM

Cancelled

Mason, James O

Location: Manning, SC
Class: Technician
Granted: 2020-06-19
Expires: 2030-06-19
Previous call: KO4DQT
FRN: 0029276631

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Vanity availability

Available

Available now

KO4JOM cleared its 2-year hold on 2022-07-07. Eligible for vanity application.

Last held by Mason, James O (SC).

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 →

Previously held by current licensee

KO4DQTcancelled· T
MASON, JAMES OSCgranted 2020-05-26cancelled 2020-06-19

Prior holders later became

N4JOMactive· G
Mason, James OSCgranted 2020-07-07

License history

0 events

No recorded events.

More vanity slots coming available

From South Carolina

All →

KG4VBH 2026-09-12
KK4LOZ 2026-09-13
KK4LPA 2026-09-13
KK4LPE 2026-09-13
KQ4UXM 2026-09-14

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 →