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

KC1IUO

Cancelled

Hornbaker, David C

Location: Marlborough, MA
Class: General
Granted: 2017-12-22
Expires: 2027-12-22
FRN: 0007361124

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Vanity availability

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KC1IUO cleared its 2-year hold on 2020-01-09. Eligible for vanity application.

Last held by Hornbaker, David C (MA).

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

N1DCHactive· E
Hornbaker, David CMAgranted 2018-01-09

License history

0 events

No recorded events.

More vanity slots coming available

From Massachusetts

All →

K1AFR 2026-09-10
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KB1ITH 2026-09-12
KB1YQO 2026-09-13

Starting with KC1

All →

KC1SDV MA · 2026-09-10
KC1VGT CT · 2026-09-10
KC1UNR NH · 2026-09-13
KC1VEC ME · 2026-09-17
KC1VEL CT · 2026-09-17

Full history → Vanity availability → Callsign genealogy →