Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KN2EFI callsign genealogy
Currently held by Stillinger, Constance
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 KN2EFI's current licensee, walking backwards.
- Stillinger, ConstanceCAgranted 2022-03-21cancelled 2022-04-16
Successor callsigns
Callsigns held now by people who previously held KN2EFI.
- Stillinger, ConstanceCAgranted 2023-04-07