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

KO4BSO

Cancelled

ZEIGLER, JAMES J

Location: HARTSVILLE, SC
Class: Technician
Granted: 2020-02-10
Expires: 2030-02-10
FRN: 0023406085

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Vanity availability

Available

Available now

KO4BSO cleared its 2-year hold on 2022-04-14. Eligible for vanity application.

Last held by ZEIGLER, JAMES J (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 →

Prior holders later became

K4JJZactive· T
ZEIGLER, JAMES JSCgranted 2020-04-14

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 →