Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WP4OKW callsign genealogy
Currently held by Valentin, Luis A
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 WP4OKW's current licensee, walking backwards.
- Valentin, Luis APRgranted 2021-08-18cancelled 2021-11-30
Successor callsigns
Callsigns held now by people who previously held WP4OKW.
All historical holders
Every license row we've seen with the callsign WP4OKW, oldest first.
- Valentin, Luis A PR2011-07-22 → cancelled 2021-08-18
- Valentin, Luis A PR2021-11-30 → cancelled 2021-12-21