Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KM5MAR callsign genealogy
Currently held by Christesson, Mark 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 KM5MAR's current licensee, walking backwards.
- Christesson, Mark RNMgranted 2023-09-16cancelled 2024-01-27
Successor callsigns
Callsigns held now by people who previously held KM5MAR.
No current licensee on record previously held this callsign.