Confidence: Medium · Source: FCC ULS · As of 2026-09-11
W7DEV callsign genealogy
Currently held by Holt Jr, Michael W
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 W7DEV's current licensee, walking backwards.
- Holt Jr, Michael WCAgranted 2018-06-15cancelled 2022-09-09
Successor callsigns
Callsigns held now by people who previously held W7DEV.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W7DEV, oldest first.
- Devils Elbow Contesters MT2009-09-12 → cancelled 2021-09-14
- Holt Jr, Michael W CA2022-09-09 active