Confidence: Medium · Source: FCC ULS · As of 2026-09-11
WA6DOC callsign genealogy
Currently held by Johnson, Nicholas 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 WA6DOC's current licensee, walking backwards.
- Johnson, NicholasCAgranted 2014-08-07cancelled 2014-09-20
Successor callsigns
Callsigns held now by people who previously held WA6DOC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WA6DOC, oldest first.
- SALZARULO, MARK E CA1998-01-21 → cancelled 2010-01-22
- Johnson, Nicholas S CA2014-09-20 active