Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC0DBD callsign genealogy
Currently held by Larson, Mark N
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 KC0DBD's current licensee, walking backwards.
- Larson, Mark NMNgranted 2023-05-16cancelled 2023-06-06
Successor callsigns
Callsigns held now by people who previously held KC0DBD.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC0DBD, oldest first.
- LARSON, MARK N MN2008-04-08 → cancelled 2020-04-09
- Larson, Mark N MN2023-06-06 active