Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WP4PM callsign genealogy
Currently held by MEDINA, JOSEPH V
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 WP4PM's current licensee, walking backwards.
- MORALES, PRIMITIVOPRgranted 2018-10-23cancelled 2019-03-09
Successor callsigns
Callsigns held now by people who previously held WP4PM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WP4PM, oldest first.
- MEDINA, JOSEPH V PR1999-05-04 → cancelled 2011-05-05
- MORALES, PRIMITIVO PR2019-03-09 active