Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N6ADO callsign genealogy
Currently held by JOHNSON, RANDALL E
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 N6ADO's current licensee, walking backwards.
- Altstadt, Gary KCAgranted 2012-10-22cancelled 2013-07-30
Successor callsigns
Callsigns held now by people who previously held N6ADO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N6ADO, oldest first.
- JOHNSON, RANDALL E CA1998-06-23 → cancelled 2010-06-24
- Altstadt, Gary K CA2023-05-03 active