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

K9SCK

Active

Karolek, Stephen C

Location: Hartland, WI
Class: General
Granted: 2023-05-02
Expires: 2033-05-02
Previous call: KD9SFZ
FRN: 0008891921

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

Vanity availability

Held

Currently held

K9SCK 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

KD9SFZcancelled· G
Karolek, Stephen CWIgranted 2021-03-29cancelled 2023-05-02

Prior holders later became

W9EJCactive· T
Cooke, Edward JFLgranted 2021-02-23

License history

0 events

No recorded events.

More vanity slots coming available

From Wisconsin

All →

KD9OFI 2026-09-10
KD9ZZQ 2026-09-10
KK4LOF 2026-09-11
N9ZRB 2026-09-13
W7QFX 2026-09-13

Starting with K9

All →

K9CWO TX · 2026-09-10
K9CYV IL · 2026-09-10
K9SRS IL · 2026-09-12
K9WCC CA · 2026-09-13
K9CKY OH · 2026-09-14

Full history → Vanity availability → Callsign genealogy →