Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KJ7OFL callsign genealogy
Currently held by Ziemba, Xavier Y
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 KJ7OFL'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 KJ7OFL.
- Ziemba, Xavier YWAgranted 2020-08-08