Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K7WSU callsign genealogy
Currently held by CHRISTENSEN, PATRICK 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 K7WSU's current licensee, walking backwards.
- Thomas, Michael CWAgranted 2025-11-21cancelled 2025-12-09
Successor callsigns
Callsigns held now by people who previously held K7WSU.
- CHRISTENSEN, PATRICK BWAgranted 2018-07-14
All historical holders
Every license row we've seen with the callsign K7WSU, oldest first.
- CHRISTENSEN, PATRICK B WA2009-03-07 → cancelled 2018-07-14
- Thomas, Michael C WA2025-12-09 active