Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W8CSU callsign genealogy
Currently held by Gammeter, Todd B
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 W8CSU's current licensee, walking backwards.
- Gammeter, Todd BOHgranted 2022-01-26cancelled 2022-02-15
Successor callsigns
Callsigns held now by people who previously held W8CSU.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W8CSU, oldest first.
- GAMMETER, EDWARD C OH1999-07-08 → cancelled 2004-01-07
- GAMMETER, ROGER D OH2011-04-02 → cancelled 2020-12-24
- Gammeter, Todd B OH2022-02-15 active