Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4ARM callsign genealogy
Currently held by ROMAN MARRERO, ABRAHAM
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 KP4ARM's current licensee, walking backwards.
- ROMAN, ABRAHAMcancelled 1999-03-30
Successor callsigns
Callsigns held now by people who previously held KP4ARM.
No current licensee on record previously held this callsign.