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

K4RRT

Active

THOMPSON, RONALD R

Location: ROCK HILL, SC
Class: General
Granted: 2023-02-22
Expires: 2033-05-11
Previous call: KK4QNG
FRN: 0022638415

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

Vanity availability

Held

Currently held

K4RRT 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

KK4QNGcancelled· T
THOMPSON, RONALDSCgranted 2013-04-23cancelled 2013-05-11

License history

0 events

No recorded events.

More vanity slots coming available

From South Carolina

All →

KQ4URH 2026-09-10
KG4VBH 2026-09-12
KK4LOZ 2026-09-13
KK4LPA 2026-09-13
KK4LPE 2026-09-13

Starting with K4

All →

K4HCL FL · 2026-09-09
K4CYG FL · 2026-09-10
K4LWW NC · 2026-09-10
K4ONS NC · 2026-09-10
K4YDD FL · 2026-09-10

Full history → Vanity availability → Callsign genealogy →