Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4EMD callsign genealogy
Currently held by HERNANDEZ, PELEGRIN
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 KP4EMD's current licensee, walking backwards.
- MENDEZ, EFRAINPRgranted 2010-09-29cancelled 2019-10-27
Successor callsigns
Callsigns held now by people who previously held KP4EMD.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KP4EMD, oldest first.
- HERNANDEZ, PELEGRIN PR2006-01-30 → cancelled 2018-03-08
- MENDEZ, EFRAIN PR2019-10-27 active