Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD1LDO callsign genealogy
Currently held by Hartson, Michael 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 KD1LDO's current licensee, walking backwards.
- Hartson, Michael JFLgranted 2017-11-06cancelled 2017-12-19
Successor callsigns
Callsigns held now by people who previously held KD1LDO.
No current licensee on record previously held this callsign.