Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W7FNZ callsign genealogy
Currently held by Marsh, Leo W
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 W7FNZ's current licensee, walking backwards.
- MARSH, JOSEPHTXgranted 2023-02-28cancelled 2023-03-18
Successor callsigns
Callsigns held now by people who previously held W7FNZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W7FNZ, oldest first.
- Marsh, Leo W OR2004-03-26 → cancelled 2016-03-29
- MARSH, JOSEPH L TX2023-03-18 active