Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KJ7TPP callsign genealogy
Currently held by Siemssen Sr, John W
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 KJ7TPP's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KJ7TPP.
- Siemssen Sr, John WWAgranted 2021-03-12