Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WP4LRD callsign genealogy
Currently held by NEGRON VAZQUEZ, GERARDO 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 WP4LRD's current licensee, walking backwards.
- NEGRON VAZQUEZ, GERARDO JPRgranted 2022-06-01cancelled 2022-06-22
Successor callsigns
Callsigns held now by people who previously held WP4LRD.
- NEGRON, GERARDOPRgranted 2019-02-06cancelled 2021-02-06
All historical holders
Every license row we've seen with the callsign WP4LRD, oldest first.
- NEGRON VAZQUEZ, GERARDO J PR2022-06-22 active
- —— → cancelled 1999-02-24