Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K8TDN callsign genealogy
Currently held by NICHOLS, TERRY D
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 K8TDN's current licensee, walking backwards.
- NICHOLS, TERRY DOHgranted 2016-01-05cancelled 2016-08-09
Successor callsigns
Callsigns held now by people who previously held K8TDN.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K8TDN, oldest first.
- Becker, William E OH1995-05-24 → cancelled 2007-05-25
- NICHOLS, TERRY D OH2026-05-14 active