Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC2CYZ callsign genealogy
Currently held by GUZMAN, SANTO J
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 KC2CYZ's current licensee, walking backwards.
- GUZMAN, SANTO Jcancelled 1998-02-05
Successor callsigns
Callsigns held now by people who previously held KC2CYZ.
- GUZMAN, SANTO JFLgranted 2024-10-05