Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N7XHB callsign genealogy
Currently held by STAMPFLI, MARTIN M
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 N7XHB's current licensee, walking backwards.
- STAMPFLI, MARTIN MUTgranted 2004-06-29cancelled 2005-06-18
Successor callsigns
Callsigns held now by people who previously held N7XHB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N7XHB, oldest first.
- STAMPFLI, MARTIN M UT1992-04-07 → cancelled 2004-04-08
- STAMPFLI, MARTIN M UT2025-06-10 active