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

N4SEX

Active

CRUDER, MARK A

Location: PALM HARBOR, FL
Class: Amateur Extra
Granted: 2020-07-21
Expires: 2030-08-22
Previous call: AG4BC
FRN: 0003063120

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Vanity availability

Held

Currently held

N4SEX 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

AG4BCactive· E
Clark, Brian NKYgranted 2020-06-09
W4SOUactive· G
Southworth Sr, Spencer WVAgranted 2019-03-05
KM4JVFcancelled· G
Southworth, Spencer WVAgranted 2015-04-16cancelled 2019-03-05

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 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 →