Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NF6N callsign genealogy
Currently held by POLAK, JOHN A
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 NF6N's current licensee, walking backwards.
- Detke, Kyle FCAgranted 2018-06-25cancelled 2019-05-14
Successor callsigns
Callsigns held now by people who previously held NF6N.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NF6N, oldest first.
- POLAK, JOHN A CA2007-01-25 → cancelled 2019-02-12
- Detke, Kyle F MN2019-05-14 active