Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7MHM callsign genealogy
Currently held by MILLER, LEONARD 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 K7MHM's current licensee, walking backwards.
- McMullen, Michael HWAgranted 2020-04-21cancelled 2021-03-09
Successor callsigns
Callsigns held now by people who previously held K7MHM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K7MHM, oldest first.
- MILLER, LEONARD L WA1988-06-14 → cancelled 2000-06-15
- McMullen, Michael H WA2021-03-09 active