Confidence: Medium · Source: FCC ULS · As of 2026-09-10

KU4UQ

Active

Cosgrove, Mark S

Location: Bradenton, FL
Class: Amateur Extra
Granted: 2014-08-22
Expires: 2024-10-19
Previous call: KE4RXY
FRN: 0003012630

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

Vanity availability

Held

Currently held

KU4UQ 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

KE4RXYcancelled
cancelled 1998-09-11

License history

0 events

No recorded events.

More vanity slots coming available

From Florida

All →

KD4SPY 2026-09-11
KK4LOA 2026-09-11
KB1HYE 2026-09-12
KO4UTL 2026-09-13
KQ4RHZ 2026-09-13

Starting with KU4

All →

KU4QM KY · 2026-10-19
KU4Y NY · 2027-01-17
KU4QL FL · 2027-01-18
KU4X AL · 2027-03-11
KU4FE AL · 2027-03-22

Full history → Vanity availability → Callsign genealogy →