Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KO4CD callsign genealogy
Currently held by DELGADO, CONRADO 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 KO4CD's current licensee, walking backwards.
- DELGADO, CONRADO MFLgranted 2002-03-22cancelled 2004-04-06
Successor callsigns
Callsigns held now by people who previously held KO4CD.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KO4CD, oldest first.
- VARGAS, JUAN V GA1991-05-21 → cancelled 2003-05-22
- DELGADO, CONRADO M FL2024-02-06 active