Confidence: Medium · Source: FCC ULS · As of 2026-09-11
K3DOC callsign genealogy
Currently held by Department Of Commerce Amateur Radio Society
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 K3DOC's current licensee, walking backwards.
- Christensen, Dale OMOgranted 2015-05-26cancelled 2015-06-13
Successor callsigns
Callsigns held now by people who previously held K3DOC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K3DOC, oldest first.
- Department Of Commerce Amateur Radio Society DC2001-04-03 → cancelled 2013-04-04
- CHRISTENSEN, DALE O MO2025-04-17 active