Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WP4JA callsign genealogy
Currently held by PEREZ MUNIZ, JOSE A
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 WP4JA's current licensee, walking backwards.
- PEREZ MUNIZ, JOSE APRgranted 2014-12-19cancelled 2016-01-12
Successor callsigns
Callsigns held now by people who previously held WP4JA.
No current licensee on record previously held this callsign.