Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K5DOS callsign genealogy
Currently held by Clark, Alexander P
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 K5DOS's current licensee, walking backwards.
- Clark, AlexanderARgranted 2015-02-11cancelled 2015-03-03
Successor callsigns
Callsigns held now by people who previously held K5DOS.
No current licensee on record previously held this callsign.