Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD5CZM callsign genealogy
Currently held by Guerra, Jose E
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 KD5CZM's current licensee, walking backwards.
- GUERRA, JOSE Ecancelled 1997-12-29
Successor callsigns
Callsigns held now by people who previously held KD5CZM.
No current licensee on record previously held this callsign.