Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD0SZS callsign genealogy
Currently held by MULLEN, DANIEL 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 KD0SZS's current licensee, walking backwards.
- Mullen, Daniel JMOgranted 2004-11-01cancelled 2012-08-31
Successor callsigns
Callsigns held now by people who previously held KD0SZS.
No current licensee on record previously held this callsign.