Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WP4FLR callsign genealogy
Currently held by RAFAEL, SANTIAGO
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 WP4FLR's current licensee, walking backwards.
- LOPEZ, FELIXPRgranted 2022-06-22cancelled 2022-08-05
Successor callsigns
Callsigns held now by people who previously held WP4FLR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WP4FLR, oldest first.
- RAFAEL, SANTIAGO PR1997-10-27 → cancelled 2009-10-28
- LOPEZ, FELIX PR2022-08-05 active