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

KD4HNH

Cancelled

KNOWLES, DAVID H

Location: BOX ELDER, SD
Class: Amateur Extra
Granted: 2021-11-05
Expires: 2032-01-11
FRN: 0003163078

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Vanity availability

Available

Available now

KD4HNH cleared its 2-year hold on 2024-01-25. Eligible for vanity application.

Last held by KNOWLES, DAVID H (SD).

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

KD0DDactive· E
KNOWLES, DAVID HSDgranted 2022-01-25

License history

0 events

No recorded events.

More vanity slots coming available

From South Dakota

All →

KF0ROX 2026-09-24
KF0OBE 2026-09-27
KD0TGH 2026-10-09
KF0RSP 2026-10-11
N0PIZ 2026-10-11

Starting with KD4

All →

KD4STD KY · 2026-09-10
KD4SPY FL · 2026-09-11
KD4SUS VA · 2026-09-14
KD4SUW MI · 2026-09-14
KD4SVG GA · 2026-09-14

Full history → Vanity availability → Callsign genealogy →