Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KN4SEJ callsign genealogy
Currently held by Hartnett, James R
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 KN4SEJ's current licensee, walking backwards.
- Hartnett, James RFLgranted 2017-12-12cancelled 2019-02-08
Successor callsigns
Callsigns held now by people who previously held KN4SEJ.
- Hartnett, James RNCgranted 2017-12-12