Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WP4NCR callsign genealogy
Currently held by Cotto-Reyes, Nilza I
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 WP4NCR's current licensee, walking backwards.
- Cotto-Reyes, Nilza IPRgranted 2014-07-29cancelled 2015-01-23
Successor callsigns
Callsigns held now by people who previously held WP4NCR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WP4NCR, oldest first.
- PILLOT FERRER, JIMMY PR1995-10-16 → cancelled 2007-10-17
- Cotto-Reyes, Nilza I PR2015-01-23 active