Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KE0TPY callsign genealogy
Currently held by Ristau, Kenneth K
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 KE0TPY's current licensee, walking backwards.
- Ristau, Kenneth KIAgranted 2009-03-03cancelled 2018-11-15
Successor callsigns
Callsigns held now by people who previously held KE0TPY.
- Ristau, Kenneth KIAgranted 2018-12-22