Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K2RSM callsign genealogy
Currently held by Muller, Robert S
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 K2RSM's current licensee, walking backwards.
- Muller, Robert SNJgranted 2003-10-24cancelled 2004-06-22
Successor callsigns
Callsigns held now by people who previously held K2RSM.
No current licensee on record previously held this callsign.