Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W8DSM callsign genealogy
Currently held by Mohler, David 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 W8DSM's current licensee, walking backwards.
- Mohler, David SOHgranted 2012-06-04cancelled 2015-01-23
Successor callsigns
Callsigns held now by people who previously held W8DSM.
No current licensee on record previously held this callsign.