Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KJ7EFU callsign genealogy
Currently held by Maricopa Yavapai Fraternal Amateur Radio Transceiving Society
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 KJ7EFU'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 KJ7EFU.
- NN7XXactiveMaricopa Yavapai Fraternal Amateur Radio Transceiving SocietyAZgranted 2019-03-19