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

K4KOO

Expired

SMITH, HARRISON S

Location: COLUMBUS, NC
Class: Amateur Extra
Granted: 2010-03-01
Expires: 2020-05-08
FRN: 0003205226

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Vanity availability

88d

Available on 2026-12-06

K4KOO cancelled on 2024-12-06. Hold ends in 88 days.

Last held by ENGELMAN, JACOB (FL).

Confidence: High

Cancelled licenses begin the 2-year hold immediately on the cancellation date, so this is the firm release date per §97.19.

Callsign genealogy

Previously held by current licensee

KQ4IGWcancelled· T
ENGELMAN, JACOBFLgranted 2023-05-05cancelled 2023-05-23

Prior holders later became

AE9Zactive· E
ENGELMAN, JACOB NFLgranted 2024-12-06

License history

0 events

No recorded events.

More vanity slots coming available

From North Carolina

KA2OFF 2026-09-09
W2RDU 2026-09-09
K4LWW 2026-09-10
K4ONS 2026-09-10
KG4TPH 2026-09-10

Starting with K4

K4HCL FL · 2026-09-09
K4CYG FL · 2026-09-10
K4LWW NC · 2026-09-10
K4ONS NC · 2026-09-10
K4YDD FL · 2026-09-10

Full history → Vanity availability → Callsign genealogy →