Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W5OTO callsign genealogy
Currently held by Otto Military Field Radio Club
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 W5OTO's current licensee, walking backwards.
- Edmonds, Matthew LLAgranted 2021-06-22cancelled 2021-07-16
Successor callsigns
Callsigns held now by people who previously held W5OTO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W5OTO, oldest first.
- Otto Military Field Radio Club NM2006-01-10 → cancelled 2018-01-11
- Edmonds, Matthew L LA2021-07-16 active