Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4ACR callsign genealogy
Currently held by CORDERO RAMIREZ, AWILDA
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 KP4ACR's current licensee, walking backwards.
- CORDERO RAMIREZ, AWILDAPRgranted 2018-05-07cancelled 2018-06-30
Successor callsigns
Callsigns held now by people who previously held KP4ACR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KP4ACR, oldest first.
- CECILIA ROSA, ANGEL PR1999-08-04 → cancelled 2011-08-05
- CORDERO RAMIREZ, AWILDA PR2018-06-30 active