Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4DS callsign genealogy
Currently held by POL, GILBERTO
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 KP4DS's current licensee, walking backwards.
- LOPEZ, LUIS GPRgranted 2000-11-16cancelled 2006-11-25
Successor callsigns
Callsigns held now by people who previously held KP4DS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KP4DS, oldest first.
- POL, GILBERTO PR1996-04-10 → cancelled 1996-08-01
- LOPEZ GUZMAN, LUIS G PR2016-09-19 active