Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4JDM callsign genealogy
Currently held by MARTINEZ CABRERA, JOSE D
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 KP4JDM's current licensee, walking backwards.
- MARTINEZ, JOSE DPRgranted 2012-05-18cancelled 2012-07-10
Successor callsigns
Callsigns held now by people who previously held KP4JDM.
No current licensee on record previously held this callsign.