Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4REI callsign genealogy
Currently held by CASIANO, REINALDO
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 KP4REI's current licensee, walking backwards.
- Lopez-Vazquez, ReynaldoPRgranted 2014-07-29cancelled 2019-06-07
Successor callsigns
Callsigns held now by people who previously held KP4REI.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KP4REI, oldest first.
- CASIANO, REINALDO PR1999-07-09 → cancelled 2011-07-12
- Lopez-Vazquez, Reynaldo PR2019-06-07 active