Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N7SDH callsign genealogy
Currently held by COOK, HELEN F
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 N7SDH's current licensee, walking backwards.
- Huaute, Storm DMTgranted 2024-05-17
Successor callsigns
Callsigns held now by people who previously held N7SDH.
- Huaute, Storm DMTgranted 2024-05-17
All historical holders
Every license row we've seen with the callsign N7SDH, oldest first.
- COOK, HELEN F WA2001-03-22 → cancelled 2013-06-19
- Huaute, Storm D MT2019-07-06 → cancelled 2024-05-17