Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W0DRT callsign genealogy
Currently held by Tigner, David R
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 W0DRT's current licensee, walking backwards.
- Tigner, David RSDgranted 2018-05-14cancelled 2020-02-14
Successor callsigns
Callsigns held now by people who previously held W0DRT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W0DRT, oldest first.
- Schulman, Allen MO2004-07-16 → cancelled 2016-10-06
- Tigner, David R AZ2020-02-14 active