Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W7TWT callsign genealogy
Currently held by Carmichael, Jeff
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 W7TWT's current licensee, walking backwards.
- Carmichael, JeffWYgranted 2023-04-21cancelled 2024-03-29
Successor callsigns
Callsigns held now by people who previously held W7TWT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W7TWT, oldest first.
- FORD, ARNOLD J OR1988-10-04 → cancelled 2000-10-05
- Carmichael, Jeff WY2024-03-29 active