Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KP4TOM callsign genealogy
Currently held by FERRER PORRATA, TOMAS
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 KP4TOM's current licensee, walking backwards.
- FERRER PORRATA, TOMAScancelled 1999-06-30
Successor callsigns
Callsigns held now by people who previously held KP4TOM.
- FERRER PORRATA, TOMASTNgranted 2023-08-26