Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4ACM callsign genealogy
Currently held by CABAN-MARIN, ARNALDO
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 KP4ACM's current licensee, walking backwards.
- CABAN-MARIN, ARNALDOPRgranted 2014-06-21cancelled 2017-12-05
Successor callsigns
Callsigns held now by people who previously held KP4ACM.
No current licensee on record previously held this callsign.