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

AB4GX

Active

De Castro, Guarionex

Location: Miami, FL
Class: Amateur Extra
Granted: 2023-02-22
Expires: 2033-02-22
Previous call: KO4YXR
FRN: 0010276517

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Vanity availability

Held

Currently held

AB4GX is held by an active license; it isn't a vanity slot right now.

Vanity availability dates are computed from FCC §97.19's hold periods: 2 years from the cancellation date for cancelled or terminated licenses, 4 years from the expiration date for expired licenses (2-year renewal grace + 2-year hold).

Callsign genealogy

Full chain →

Previously held by current licensee

KO4YXRcancelled· E
De Castro, GuarionexFLgranted 2022-03-22cancelled 2023-02-22

Prior holders later became

K4EAAexpired· E
KEMSKI, KENNETH CFLgranted 2011-08-06cancelled 2023-09-23

License history

0 events

No recorded events.

More vanity slots coming available

From Florida

All →

K4CYG 2026-09-10
K4YDD 2026-09-10
KG4QXI 2026-09-10
KG4RVV 2026-09-10
KG4VAB 2026-09-10

Starting with AB4

All →

AB4LC AL · 2026-09-14
AB4BH NC · 2027-01-14
AB4NH TN · 2027-01-17
AB4RM FL · 2027-02-15
AB4N TN · 2027-03-21

Full history → Vanity availability → Callsign genealogy →