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

KN4ZKU

Cancelled

CLARK, CHARLES

Location: GREENSBORO, NC
Class: Technician
Granted: 2019-10-28
Expires: 2029-10-28
FRN: 0028917409

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Vanity availability

Available

Available now

KN4ZKU cleared its 2-year hold on 2022-03-17. Eligible for vanity application.

Last held by CLARK, CHARLES (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

N4BROactive· T
CLARK, CHARLESNCgranted 2020-03-17

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 KN4

All →

KN4ZVG FL · 2026-09-17
KN4LGK GA · 2026-09-21
KN4VXC NC · 2026-09-21
KN4RPM VA · 2026-10-07
KN4GAM GA · 2026-10-12

Full history → Vanity availability → Callsign genealogy →