Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WP4CW callsign genealogy
Currently held by DE NUNEZ CABRERA, JOSE
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 WP4CW's current licensee, walking backwards.
- MARTINEZ JR, TEODORO HPRgranted 2008-12-29cancelled 2009-01-21
Successor callsigns
Callsigns held now by people who previously held WP4CW.
- MARTINEZ JR, TEODORO HCAgranted 2022-12-06
All historical holders
Every license row we've seen with the callsign WP4CW, oldest first.
- DE NUNEZ CABRERA, JOSE PR1996-12-30 → cancelled 2008-12-31
- MARTINEZ JR, TEODORO H CA2018-10-30 → cancelled 2022-12-06