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Confidence: Medium · Source: FCC ULS · As of 2026-10-26

K4JTZ

Cancelled

Horn, Mark J

Location
WINTER GARDEN, FL
Class
General
Granted
2025-12-09
Expires
2035-12-09
Previous call
KQ4JRZ
FRN
0033795501
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Vanity availability

714d

Available on 2028-10-09

K4JTZ cancelled on 2026-10-10. Hold ends in 714 days.

Last held by Horn, Mark 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. KQ4JRZcancelled· G
    Horn, Mark JFLgranted 2023-07-07cancelled 2025-12-09

Prior holders later became

  1. K4FHPactive· G
    Horn, Mark JFLgranted 2026-10-10

License history

3 events
  1. Cancelled
    LICAN
    [LICAN]
  2. Vanity callsign change
    VANGRT
    [VANGRT]
  3. License granted
    LIISS
    [LIISS]

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Full history → Vanity availability → Callsign genealogy →