Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4CTO callsign genealogy
Currently held by TORRES ORTIZ, CARLOS 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 KP4CTO's current licensee, walking backwards.
- TORRES ORTIZ, CARLOS MPRgranted 2023-01-31cancelled 2023-03-13
Successor callsigns
Callsigns held now by people who previously held KP4CTO.
No current licensee on record previously held this callsign.