Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KP4ISI callsign genealogy
Currently held by VELEZ FLORES, ROSA
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 KP4ISI's current licensee, walking backwards.
- VELEZ FLORES, ROSAPRgranted 2021-08-30cancelled 2021-09-17
Successor callsigns
Callsigns held now by people who previously held KP4ISI.
No current licensee on record previously held this callsign.