Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NP4YV callsign genealogy
Currently held by MARTINEZ, CARMEN J
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 NP4YV's current licensee, walking backwards.
- Vazquez-Negron, YelitzaPRgranted 2018-11-28cancelled 2018-12-18
Successor callsigns
Callsigns held now by people who previously held NP4YV.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NP4YV, oldest first.
- MARTINEZ, CARMEN J PR1996-05-22 → cancelled 2008-05-23
- Vazquez-Negron, Yelitza PR2018-12-18 active