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

AG4HI

Cancelled

Higdon, Michael S

Location: LOUISVILLE, KY
Class: Amateur Extra
Granted: 2014-12-10
Expires: 2025-03-07
Previous call: KT4OG
FRN: 0004790465

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Vanity availability

Available

Available now

AG4HI cleared its 2-year hold on 2018-07-12. Eligible for vanity application.

Last held by Higdon, Michael S (KY).

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

KT4OGcancelled· E
Higdon, Michael SKYgranted 1996-04-10cancelled 2001-03-19
KE4WJI
no FCC ULS record on file

Prior holders later became

K4LKYcancelled· E
Higdon, Michael SKYgranted 2026-04-14cancelled 2026-05-08

License history

0 events

No recorded events.

More vanity slots coming available

From Kentucky

All →

KG4VAS 2026-09-11
KG4VAT 2026-09-11
K4OTU 2026-09-14
KD4SWM 2026-09-14
KD4SWN 2026-09-14

Starting with AG4

All →

AG4TQ TN · 2026-09-21
AG4VH KY · 2026-09-21
AG4WQ FL · 2026-10-20
AG4XG TN · 2026-12-10
AG4ZA KY · 2026-12-10

Full history → Vanity availability → Callsign genealogy →