Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC7IU callsign genealogy
Currently held by NICOLAYSEN, DONALD L
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 KC7IU's current licensee, walking backwards.
- WB6IYGno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held KC7IU.
- NICOLAYSEN, DONALD LTXgranted 2017-03-29