Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KC7DTB callsign genealogy
Currently held by Nakajima, David
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 KC7DTB's current licensee, walking backwards.
- Nakajima, DavidAZgranted 2022-11-16cancelled 2022-12-28
Successor callsigns
Callsigns held now by people who previously held KC7DTB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC7DTB, oldest first.
- EASTON, DAVID W OR2014-05-23 → cancelled 2021-01-06
- Nakajima, David OR2022-12-28 active