Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KJ5ACK callsign genealogy
Currently held by FLEET III, JOHN J
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by KJ5ACK's current licensee, walking backwards.
- FLEET III, JOHN JTXgranted 2013-02-23cancelled 2022-03-29
Successor callsigns
Callsigns held now by people who previously held KJ5ACK.
No current licensee on record previously held this callsign.