Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4ESR callsign genealogy
Currently held by AFANADOR-CRUZ, ANTONIO
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 KP4ESR's current licensee, walking backwards.
- AFANADOR CRUZ, ANTONIOPRgranted 2025-03-04cancelled 2025-04-08
Successor callsigns
Callsigns held now by people who previously held KP4ESR.
No current licensee on record previously held this callsign.