Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KI7KDC callsign genealogy
Currently held by Schmidt, Mark 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 KI7KDC's current licensee, walking backwards.
- Schmidt, Mark LORgranted 2016-06-21cancelled 2016-11-15
Successor callsigns
Callsigns held now by people who previously held KI7KDC.
- Schmidt, Mark LORgranted 2019-07-12