Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K3DNR callsign genealogy
Currently held by Wolter, Matthew S
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 K3DNR's current licensee, walking backwards.
- Wolter, Matthew SMAgranted 2020-05-19cancelled 2022-04-12
Successor callsigns
Callsigns held now by people who previously held K3DNR.
No current licensee on record previously held this callsign.