Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KM4FDO callsign genealogy
Currently held by Hancock, Michael L
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 KM4FDO's current licensee, walking backwards.
- Hancock, Michael LKYgranted 2014-09-18cancelled 2014-10-22
Successor callsigns
Callsigns held now by people who previously held KM4FDO.
- Hancock, Michael LINgranted 2024-08-06