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

N4GSX

Active

Tolosky, Robert G

Location: Jacksonville, FL
Class: Technician
Granted: 2020-06-05
Expires: 2030-06-05
Previous call: KO4DLI
FRN: 0029409166

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Vanity availability

Held

Currently held

N4GSX 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

KO4DLIcancelled· T
Tolosky, Robert GFLgranted 2020-05-18cancelled 2020-06-05

Prior holders later became

AB0JTactive· E
Markham, Brian PTXgranted 2024-01-06

License history

0 events

No recorded events.

More vanity slots coming available

From Florida

All →

K4HCL 2026-09-09
KG4UZU 2026-09-09
KG4UZX 2026-09-09
KK4LMR 2026-09-09
W3EFZ 2026-09-09

Starting with N4

All →

N4WKB FL · 2026-09-10
N4MOC GA · 2026-09-14
N4YTT KY · 2026-09-14
N4PWQ TN · 2026-09-17
N4RIM NC · 2026-09-21

Full history → Vanity availability → Callsign genealogy →