Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W7ADT callsign genealogy
Currently held by OSCARSON, BERT 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 W7ADT's current licensee, walking backwards.
- Bryant, Matthew MORgranted 2001-11-27cancelled 2009-04-07
Successor callsigns
Callsigns held now by people who previously held W7ADT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W7ADT, oldest first.
- OSCARSON, BERT A WA1988-02-02 → cancelled 2000-02-03
- BRYANT, MATTHEW M OR2019-02-13 active