Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K7IYK callsign genealogy
Currently held by NIELSEN, JEFFREY C
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 K7IYK's current licensee, walking backwards.
- NIELSEN, JEFFREY CUTgranted 2024-10-22cancelled 2024-11-09
Successor callsigns
Callsigns held now by people who previously held K7IYK.
No current licensee on record previously held this callsign.