Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N7POT callsign genealogy
Currently held by WILLMAN, JOAN 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 N7POT's current licensee, walking backwards.
- MARTIN, SARAH ENMgranted 2013-03-15cancelled 2021-03-09
Successor callsigns
Callsigns held now by people who previously held N7POT.
- Groussman, SARAH EWAgranted 2026-07-31
All historical holders
Every license row we've seen with the callsign N7POT, oldest first.
- WILLMAN, JOAN M OR1990-09-18 → cancelled 2002-09-19
- Groussman, SARAH E WA2021-03-09 → cancelled 2026-07-31