Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K2MRS callsign genealogy
Currently held by SCHUPPENHAUER, MICHAEL R
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 K2MRS's current licensee, walking backwards.
- SCHUPPENHAUER, MICHAEL RCAgranted 2007-05-04cancelled 2007-05-30
Successor callsigns
Callsigns held now by people who previously held K2MRS.
No current licensee on record previously held this callsign.