Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KK0JX callsign genealogy
Currently held by Mass, Jerry 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 KK0JX's current licensee, walking backwards.
- Mass, Jerry JCOgranted 1998-05-27cancelled 2005-02-01
Successor callsigns
Callsigns held now by people who previously held KK0JX.
- Mass, Jerry JCOgranted 2022-11-22