Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4GMP callsign genealogy
Currently held by MARCIAL PEREZ, GRISEL
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 KP4GMP's current licensee, walking backwards.
- MARCIAL PEREZ, GRISELPRgranted 2023-10-11cancelled 2026-06-09
Successor callsigns
Callsigns held now by people who previously held KP4GMP.
No current licensee on record previously held this callsign.