Confidence: Medium · Source: FCC ULS · As of 2026-09-11

W0ZDT

Cancelled

KLUMPER, MATTHEW

Location: Sioux Falls, SD
Class: General
Granted: 2016-12-20
Expires: 2026-12-20
Previous call: W0ZZY
FRN: 0021325162

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Vanity availability

Available

Available now

W0ZDT cleared its 2-year hold on 2021-06-21. Eligible for vanity application.

Last held by KLUMPER, MATTHEW (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 →

Previously held by current licensee

W0ZZYactive· G
KLUMPER, MATTHEWSDgranted 2019-06-22

Prior holders later became

W0ZZYactive· G
KLUMPER, MATTHEWSDgranted 2019-06-22

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 W0

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W0DMY KS · 2026-09-20
W0CVF CO · 2026-09-23
W0KLD MO · 2026-09-24

Full history → Vanity availability → Callsign genealogy →