Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WP4DCN callsign genealogy
Currently held by Rosario, Jairo
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 WP4DCN's current licensee, walking backwards.
- Rosario, JairoPRgranted 2025-02-14cancelled 2025-03-18
Successor callsigns
Callsigns held now by people who previously held WP4DCN.
No current licensee on record previously held this callsign.