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

W4FUU

Active

Rust, Carl W

Location: Green Valley, AZ
Class: General
Granted: 2022-05-10
Expires: 2032-05-10
Previous call: KK7DQC
FRN: 0031835713

Get notified about status changes and vanity availability for this callsign.

Vanity availability

Held

Currently held

W4FUU 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

KK7DQCcancelled· G
Rust, Carl WAZgranted 2022-02-15cancelled 2022-05-10

License history

0 events

No recorded events.

More vanity slots coming available

From Arizona

All →

K7JVC 2026-09-09
N0PSA 2026-09-09
AD7UU 2026-09-10
W7CWD 2026-09-10
KF7YNV 2026-09-13

Starting with W4

All →

W4HKO FL · 2026-09-09
W4IDI AL · 2026-09-10
W4YAU TN · 2026-09-10
W4CVH VA · 2026-09-12
W4QDZ NC · 2026-09-13

Full history → Vanity availability → Callsign genealogy →