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

KF4RG

Active

GRUBB, ROBERT E

Location: MONTEREY, TN
Class: Advanced
Granted: 2015-11-28
Expires: 2025-11-28
Previous call: KF4BR
FRN: 0017355686

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

Vanity availability

Held

Currently held

KF4RG 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

KF4BRcancelled· A
GRUBB, ROBERT ETNgranted 2009-07-02cancelled 2015-11-28

License history

0 events

No recorded events.

More vanity slots coming available

From Tennessee

All →

KG4TWC 2026-09-10
KK4LNE 2026-09-10
KK4LNK 2026-09-10
KQ4TPH 2026-09-10
KQ4UUA 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 →