Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4CTR callsign genealogy
Currently held by TORRES RIVERA, CESAR
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 KP4CTR's current licensee, walking backwards.
- TORRES RIVERA, CESARPRgranted 2023-01-31cancelled 2023-02-18
Successor callsigns
Callsigns held now by people who previously held KP4CTR.
No current licensee on record previously held this callsign.