Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4LEU callsign genealogy
Currently held by Rivera, Osvaldo
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 KP4LEU's current licensee, walking backwards.
- Rivera-Soto, OsvaldoPRgranted 2001-05-02cancelled 2002-07-16
Successor callsigns
Callsigns held now by people who previously held KP4LEU.
- Rivera, OsvaldoFLgranted 2002-07-16cancelled 2008-02-15