Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AA7DM callsign genealogy
Currently held by PARKINSON, SANDRA E
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 AA7DM's current licensee, walking backwards.
- Rychtik, Thomas HAZgranted 2023-05-23cancelled 2025-07-12
Successor callsigns
Callsigns held now by people who previously held AA7DM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AA7DM, oldest first.
- PARKINSON, SANDRA E WA2011-03-17 → cancelled 2023-03-18
- Rychtik, Thomas H AZ2025-07-12 active