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

K0RG

Active

Lefkoff, Henry J

Location: Boulder, CO
Class: Amateur Extra
Granted: 2024-09-14
Expires: 2034-09-14
Previous call: KF0INO
FRN: 0032064511

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

Vanity availability

Held

Currently held

K0RG 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

KF0INOcancelled· E
Lefkoff, Henry JCOgranted 2022-04-04cancelled 2024-09-14

Prior holders later became

K7APcancelled· E
LARIMORE, JEFFREY AAZgranted 2022-08-26cancelled 2022-12-09

License history

0 events

No recorded events.

More vanity slots coming available

From Colorado

All →

K0RTS 2026-09-09
K7UGT 2026-09-09
W0RMH 2026-09-09
KB7PWB 2026-09-10
KF0RME 2026-09-10

Starting with K0

All →

K0RTS CO · 2026-09-09
K0WFI KS · 2026-09-10
K0KDD KS · 2026-09-17
K0BHM KS · 2026-09-20
K0DO MO · 2026-10-09

Full history → Vanity availability → Callsign genealogy →