Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD7SK callsign genealogy
Currently held by Tiura, James A
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 AD7SK's current licensee, walking backwards.
- Skroch, M DAZgranted 2021-06-17cancelled 2021-10-08
Successor callsigns
Callsigns held now by people who previously held AD7SK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AD7SK, oldest first.
- Tiura, James A WA2008-02-29 → cancelled 2020-02-29
- Skroch, M D AZ2021-10-08 active