Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W7ROE callsign genealogy
Currently held by TARRANT, WILLIAM C
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 W7ROE's current licensee, walking backwards.
- WA7KZFcancelledBUTTE AMATEUR RADIO CLUBMTgranted 2004-05-26cancelled 2009-11-06
Successor callsigns
Callsigns held now by people who previously held W7ROE.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W7ROE, oldest first.
- TARRANT, WILLIAM C MT2006-01-11 → cancelled 2009-06-01
- Butte Radio Club Inc MT2020-01-15 active