uls-tracker
Sign in
Confidence: Medium · Source: FCC ULS · As of 2026-09-10

KR4SIS

Active

Turner, Mary M

Location
Ozark, AL
Class
Technician
Granted
2025-06-21
Expires
2035-06-21
Previous call
KR4DNS
FRN
0036955854
Sign in to watch

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

Vanity availability

Held

Currently held

KR4SIS 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

  1. KR4DNScancelled· T
    Turner, Mary MALgranted 2025-04-29cancelled 2025-06-21

License history

0 events

No recorded events.

More vanity slots coming available

From Alabama

All →

Starting with KR4

All →