Confidence: Medium · Source: FCC ULS · As of 2026-09-10

KF4RJA

Cancelled

Achtenberg, Robert J

Location: Roswell, GA
Class: Amateur Extra
Granted: 2022-03-05
Expires: 2032-03-05
Previous call: KO4QJK
FRN: 0030765226

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

Vanity availability

Available

Available now

KF4RJA cleared its 2-year hold on 2025-03-31. Eligible for vanity application.

Last held by Achtenberg, Robert J (GA).

Confidence: High

Cancelled licenses begin the 2-year hold immediately, so this date is the firm release date per §97.19. Already past — fileable subject to FCC verification.

Callsign genealogy

Full chain →

Previously held by current licensee

KO4QJKcancelled· G
Achtenberg, Robert JGAgranted 2021-05-17cancelled 2022-03-05

Prior holders later became

AJ4RJactive· E
Achtenberg, Robert JGAgranted 2023-04-01
K4GLAexpired
CASWELL PERSON AMATEUR RADIO SOCNCgranted 2007-11-20cancelled 2019-12-04

License history

0 events

No recorded events.

More vanity slots coming available

From Georgia

All →

KK4LOC 2026-09-11
KK4LOG 2026-09-11
KK4LOH 2026-09-11
KK4LOK 2026-09-11
KK4LOU 2026-09-13

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 →