Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9MHM callsign genealogy
Currently held by McGill Jr, Marvin H
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 K9MHM's current licensee, walking backwards.
- McGill Jr, Marvin HIAgranted 2009-10-14cancelled 2014-03-25
Successor callsigns
Callsigns held now by people who previously held K9MHM.
No current licensee on record previously held this callsign.