Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KA1DIZ callsign genealogy
Currently held by Nielsen, Claudia B
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 KA1DIZ's current licensee, walking backwards.
- Nielsen, Claudia BCTgranted 2023-05-03cancelled 2023-05-31
Successor callsigns
Callsigns held now by people who previously held KA1DIZ.
No current licensee on record previously held this callsign.