Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KR3PER callsign genealogy
Currently held by Johnson, Martin 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 KR3PER's current licensee, walking backwards.
- Johnson, Martin LCAgranted 2008-10-08cancelled 2008-11-04
Successor callsigns
Callsigns held now by people who previously held KR3PER.
No current licensee on record previously held this callsign.