Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W9MRH callsign genealogy
Currently held by HANNUM, 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 W9MRH's current licensee, walking backwards.
- Hannum, Michael RINgranted 2015-06-15cancelled 2015-07-07
Successor callsigns
Callsigns held now by people who previously held W9MRH.
No current licensee on record previously held this callsign.