Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KJ7KYY callsign genealogy
Currently held by Nielsen, John M
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 KJ7KYY's current licensee, walking backwards.
- Nielsen, John MWAgranted 2019-11-20cancelled 2019-12-03
Successor callsigns
Callsigns held now by people who previously held KJ7KYY.
No current licensee on record previously held this callsign.