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

K4FXB

Active

Sandifer, William

Location: Spring Hill, FL
Class: Amateur Extra
Granted: 2023-06-22
Expires: 2033-06-22
Previous call: KQ4IFN
FRN: 0033715285

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Vanity availability

Held

Currently held

K4FXB 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

KQ4IFNcancelled· E
Sandifer, William EFLgranted 2023-05-02cancelled 2023-06-22

Prior holders later became

W5YVTcancelled· A
GOODMAN, PHILIP IGAgranted 1996-07-31cancelled 2003-08-23

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 K4

All →

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 →