Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W7SWB callsign genealogy
Currently held by Senter, David L
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 W7SWB's current licensee, walking backwards.
- ROLAND, JOHN RWAgranted 2010-09-21cancelled 2011-12-17
Successor callsigns
Callsigns held now by people who previously held W7SWB.
- SENTER, DAVID LORgranted 2025-02-19
All historical holders
Every license row we've seen with the callsign W7SWB, oldest first.
- Senter, David L OR2000-03-07 → cancelled 2005-05-14
- ROLAND, JOHN R WA2022-09-21 active