Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KA9MSR callsign genealogy
Currently held by VAN DER BURGT, MARTIN 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 KA9MSR's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KA9MSR.
- VAN DER BURGT, MARTIN JINgranted 2022-03-08