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

KF4O

Active

ADAMS, RANDY S

Location: Hillsborough, NC
Class: Amateur Extra
Granted: 2017-03-23
Expires: 2027-05-20
Previous call: KF4DW
FRN: 0005365549

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

Vanity availability

Held

Currently held

KF4O 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

KF4DW
no FCC ULS record on file

License history

0 events

No recorded events.

More vanity slots coming available

From North Carolina

All →

K4LWW 2026-09-10
K4ONS 2026-09-10
KG4TPH 2026-09-10
KK4LNB 2026-09-10
KK4LND 2026-09-10

Starting with KF4

All →

KF4WUR VA · 2026-10-01
KF4BCO FL · 2026-10-09
KF4WLA FL · 2026-10-11
KF4QOP KY · 2026-11-16
KF4TYA FL · 2026-11-22

Full history → Vanity availability → Callsign genealogy →