Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W7TDW callsign genealogy
Currently held by JERMUNSON, CARTER P
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 W7TDW's current licensee, walking backwards.
- Webster, Troy DUTgranted 2007-04-16cancelled 2012-09-07
Successor callsigns
Callsigns held now by people who previously held W7TDW.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W7TDW, oldest first.
- JERMUNSON, CARTER P MT1998-03-11 → cancelled 2009-12-22
- Webster, Troy D UT2022-09-07 active