Confidence: Medium · Source: FCC ULS · As of 2026-10-28

KU4UQ

Expired

Cosgrove, Mark S

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

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Vanity availability

1452d

Available on 2030-10-20

KU4UQ expired on 2026-10-21. Hold ends in 1452 days.

Last held by Cosgrove, Mark S (FL).

Confidence: High

Expired licenses get a 2-year FCC renewal grace period followed by the 2-year hold. The date shown accounts for both, so it's the firm release date per §97.19.

Callsign genealogy

Full chain →

Previously held by current licensee

KE4RXYcancelled
cancelled 1998-09-11

License history

4 events

Expired 2026-10-21

LIEXP
[LIEXP]
Renewed 2014-08-22

LIREN
[LIREN]
Modified 2007-04-25

LIMOD
[LIMOD]
Renewed 2004-07-27

LIREN
[LIREN]

More vanity slots coming available

From Florida

All →

KG4VKO 2026-10-29
KG4VUA 2026-10-29
KG4VUE 2026-10-29
KG4VUF 2026-10-29
KQ4BO 2026-10-29

Starting with KU4

All →

KU4Y NY · 2027-01-17
KU4QL FL · 2027-01-18
KU4X AL · 2027-03-11
KU4FE AL · 2027-03-22
KU4IJ AL · 2027-03-22

Full history → Vanity availability → Callsign genealogy →