Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KJ7RTH callsign genealogy
Currently held by Petersen, Joel R
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 KJ7RTH's current licensee, walking backwards.
- Petersen, Joel RORgranted 2018-11-27cancelled 2018-12-18
Successor callsigns
Callsigns held now by people who previously held KJ7RTH.
No current licensee on record previously held this callsign.