Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W8NTD callsign genealogy
Currently held by Stimble, Robert T
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 W8NTD's current licensee, walking backwards.
- Corwin, Gregory JMIgranted 2020-01-15cancelled 2020-07-31
Successor callsigns
Callsigns held now by people who previously held W8NTD.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W8NTD, oldest first.
- Stimble, Robert T MI2008-02-09 → cancelled 2020-02-11
- Corwin, Gregory J MI2020-07-31 active