Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N7MHZ callsign genealogy
Currently held by SNODGRASS, DONALD D
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 N7MHZ's current licensee, walking backwards.
- Marshall, Evan SORgranted 2015-06-24cancelled 2018-04-24
Successor callsigns
Callsigns held now by people who previously held N7MHZ.
- ISOLDI, STEVEN KAZgranted 2016-03-18cancelled 2016-11-18
All historical holders
Every license row we've seen with the callsign N7MHZ, oldest first.
- SNODGRASS, DONALD D NV1998-11-06 → cancelled 2010-11-09
- ISOLDI, STEVEN K AZ2014-11-01 → cancelled 2016-03-18
- Marshall, Evan S OR2018-04-24 active