Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4KEY callsign genealogy
Currently held by JIMENEZ-CRUZ, MARCELINO
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 KP4KEY's current licensee, walking backwards.
- JIMENEZ-CRUZ, MARCELINOPRgranted 2003-04-15cancelled 2010-09-28
Successor callsigns
Callsigns held now by people who previously held KP4KEY.
No current licensee on record previously held this callsign.