Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KF7FPO callsign genealogy
Currently held by Thatcher, Steve M
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 KF7FPO's current licensee, walking backwards.
- Billings, Preston NARgranted 2017-06-06
Successor callsigns
Callsigns held now by people who previously held KF7FPO.
All historical holders
Every license row we've seen with the callsign KF7FPO, oldest first.
- Thatcher, Steve M WA2009-10-30 → cancelled 2009-11-21
- Billings, Preston N AR2017-02-04 → cancelled 2017-06-06