Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KO1TUS callsign genealogy
Currently held by MC LEAN, STEVEN J
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 KO1TUS's current licensee, walking backwards.
- MC LEAN, STEVEN JUTgranted 2015-03-04cancelled 2015-04-04
Successor callsigns
Callsigns held now by people who previously held KO1TUS.
No current licensee on record previously held this callsign.