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

KO4MUJ

Cancelled

Caldwell, Ronald W

Location: Sherrills Ford, NC
Class: Technician
Granted: 2021-02-19
Expires: 2031-02-19
FRN: 0030588958

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Vanity availability

Available

Available now

KO4MUJ cleared its 2-year hold on 2025-04-27. Eligible for vanity application.

Last held by Caldwell, Ronald W (NC).

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

KK1CAPactive· G
Caldwell, Ronald WNCgranted 2023-04-28

License history

0 events

No recorded events.

More vanity slots coming available

From North Carolina

All →

K4LWW 2026-09-10
K4ONS 2026-09-10
KG4TPH 2026-09-10
KK4LNB 2026-09-10
KK4LND 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 →