uls-tracker
Sign in
Confidence: Medium · Source: FCC ULS · As of 2026-09-09

AC4ZX

Cancelled

Finger, Robert J

Location
Jacksonville, FL
Class
Amateur Extra
Granted
2022-12-14
Expires
2033-02-02
Previous call
KO4KO
FRN
0008564049
Sign in to watch

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

Vanity availability

436d

Available on 2027-11-19

AC4ZX cancelled on 2025-11-19. Hold ends in 436 days.

Last held by Finger, Robert J (FL).

Confidence: High

Cancelled licenses begin the 2-year hold immediately on the cancellation date, so this is the firm release date per §97.19.

Callsign genealogy

Full chain →

Previously held by current licensee

  1. KO4KOactive· E
    Henderson, Richard BKYgranted 2020-01-10
  2. KO4AGIcancelled· E
    Henderson, Richard BKYgranted 2019-11-22cancelled 2020-01-10

Prior holders later became

  1. KZ4XHcancelled· E
    Finger, Robert JFLgranted 2022-12-14cancelled 2026-02-25

License history

0 events

No recorded events.

More vanity slots coming available

From Florida

All →

Starting with AC4

All →
Full history → Vanity availability → Callsign genealogy →