Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N9KNF callsign genealogy
Currently held by HARWELL, WALTER F
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 N9KNF's current licensee, walking backwards.
- Ward, Gregory JINgranted 2016-12-16cancelled 2017-01-10
Successor callsigns
Callsigns held now by people who previously held N9KNF.
- HARWELL, WALTER FILgranted 2020-12-10
All historical holders
Every license row we've seen with the callsign N9KNF, oldest first.
- HARWELL, WALTER F IL1995-05-19 → cancelled 2001-02-06
- Ward, Gregory J IN2017-01-10 active