Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KO7FTW callsign genealogy
Currently held by Olmsted, Kramer M
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 KO7FTW's current licensee, walking backwards.
- Olmsted, Kramer MOHgranted 2021-09-15cancelled 2021-10-05
Successor callsigns
Callsigns held now by people who previously held KO7FTW.
No current licensee on record previously held this callsign.