Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KN4IOW callsign genealogy
Currently held by Horne, Christopher D
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 KN4IOW's current licensee, walking backwards.
- Horne, Christopher DVAgranted 2018-04-20cancelled 2020-11-20
Successor callsigns
Callsigns held now by people who previously held KN4IOW.
- Horne, Christopher DVAgranted 2018-04-20cancelled 2020-11-20
All historical holders
Every license row we've seen with the callsign KN4IOW, oldest first.
- Horne, Christopher D VA2017-12-20 → cancelled 2018-04-20
- Horne, Christopher D VA2020-11-20 active