Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W7TKO callsign genealogy
Currently held by Johnsen, Peter
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 W7TKO's current licensee, walking backwards.
- Johnsen, PeterNVgranted 2002-05-08cancelled 2009-02-13
Successor callsigns
Callsigns held now by people who previously held W7TKO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W7TKO, oldest first.
- RHOADES, F HAZEN WA1996-12-10 → cancelled 2008-12-11
- Johnsen, Peter NV2018-11-17 active