Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W6OTT callsign genealogy
Currently held by Fisher, Michael K
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 W6OTT's current licensee, walking backwards.
- Fisher, MichaelCAgranted 2023-01-31cancelled 2023-03-07
Successor callsigns
Callsigns held now by people who previously held W6OTT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W6OTT, oldest first.
- Fisher, Michael K CA2009-08-04 → cancelled 2021-08-05
- Fisher, Michael K CA2023-03-07 active