Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4ISA callsign genealogy
Currently held by MUNIZ DEL VALLE, ISABEL M
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 KP4ISA's current licensee, walking backwards.
- MUNIZ DEL VALLE, ISABEL MPRgranted 2022-07-28cancelled 2022-12-20
Successor callsigns
Callsigns held now by people who previously held KP4ISA.
No current licensee on record previously held this callsign.