Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4JDA callsign genealogy
Currently held by Arroyo Velez, Juan 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 KP4JDA's current licensee, walking backwards.
- Arroyo-Velez, Juan DPRgranted 2001-04-17cancelled 2002-04-10
Successor callsigns
Callsigns held now by people who previously held KP4JDA.
No current licensee on record previously held this callsign.