Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K5MRH callsign genealogy
Currently held by Holczer, 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 K5MRH's current licensee, walking backwards.
- Holczer, Michael RMDgranted 2017-12-11cancelled 2018-01-26
Successor callsigns
Callsigns held now by people who previously held K5MRH.
No current licensee on record previously held this callsign.