Confidence: Medium · Source: FCC ULS · As of 2026-09-11
KA4ORC callsign genealogy
Currently held by Orsinger, Michael E
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 KA4ORC's current licensee, walking backwards.
- Orsinger, Michael EVAgranted 2023-05-06cancelled 2023-06-10
Successor callsigns
Callsigns held now by people who previously held KA4ORC.
No current licensee on record previously held this callsign.