Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9CDA callsign genealogy
Currently held by Alonzi, C DAVID
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 K9CDA's current licensee, walking backwards.
- Alonzi, C DAVIDILgranted 2008-05-14cancelled 2009-04-21
Successor callsigns
Callsigns held now by people who previously held K9CDA.
No current licensee on record previously held this callsign.