Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W1EOS callsign genealogy
Currently held by Leonido, Michael A
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 W1EOS's current licensee, walking backwards.
- Leonido, Michael ANHgranted 2022-04-14cancelled 2022-05-03
Successor callsigns
Callsigns held now by people who previously held W1EOS.
No current licensee on record previously held this callsign.