Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WA7DLR callsign genealogy
Currently held by THEISS, JOHN B
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 WA7DLR's current licensee, walking backwards.
- RIGBY, DAVID LIDgranted 2014-10-07cancelled 2021-04-09
Successor callsigns
Callsigns held now by people who previously held WA7DLR.
- Rigby, David LIDgranted 2021-04-09cancelled 2021-08-31
All historical holders
Every license row we've seen with the callsign WA7DLR, oldest first.
- THEISS, JOHN B AZ2008-04-18 → cancelled 2020-05-13
- Rigby, David L ID2021-04-09 → cancelled 2021-05-24