Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KN4VOW callsign genealogy
Currently held by Harpole, John S
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 KN4VOW's current licensee, walking backwards.
- Harpole, John STNgranted 2019-07-01cancelled 2019-07-12
Successor callsigns
Callsigns held now by people who previously held KN4VOW.
No current licensee on record previously held this callsign.