Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K5MJJ callsign genealogy
Currently held by Jones, Matthew 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 K5MJJ's current licensee, walking backwards.
- Jones, Matthew JTXgranted 2002-07-02cancelled 2005-09-10
Successor callsigns
Callsigns held now by people who previously held K5MJJ.
- Jones, Matthew JTXgranted 2021-03-16