Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC1FRN callsign genealogy
Currently held by Bornhorst, Jason 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 KC1FRN's current licensee, walking backwards.
- Park, Jennifer AMAgranted 2019-05-16cancelled 2020-06-20
Successor callsigns
Callsigns held now by people who previously held KC1FRN.
- Bornhorst, Jason RMAgranted 2026-04-09
All historical holders
Every license row we've seen with the callsign KC1FRN, oldest first.
- Bornhorst, Jason R MA2016-05-09 → cancelled 2016-06-18
- Park, Jennifer A NC2020-06-20 active