Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K9MFT callsign genealogy
Currently held by OTTO, CHRISTIAN 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 K9MFT's current licensee, walking backwards.
- OTTO, CHRISTIAN JILgranted 1998-03-18cancelled 2002-03-29
Successor callsigns
Callsigns held now by people who previously held K9MFT.
- OTTO, CHRISTIAN JILgranted 2023-01-27