Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4EMP callsign genealogy
Currently held by MEDINA, EUGENE
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 KP4EMP's current licensee, walking backwards.
- MEDINA, EUGENEFLgranted 2019-03-25cancelled 2019-04-12
Successor callsigns
Callsigns held now by people who previously held KP4EMP.
- HERNANDEZ, FERNANDOPRgranted 2021-03-22
All historical holders
Every license row we've seen with the callsign KP4EMP, oldest first.
- HERNANDEZ, FERNANDO PR2004-12-01 → cancelled 2011-06-07
- MEDINA, EUGENE PR2019-04-12 active