Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KN4WTF callsign genealogy
Currently held by Israel, Eric J
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 KN4WTF's current licensee, walking backwards.
- DZIUBA, CHRISTOPHER MTNgranted 2015-01-22cancelled 2020-06-09
Successor callsigns
Callsigns held now by people who previously held KN4WTF.
- Israel, Eric JFLgranted 2018-05-05
All historical holders
Every license row we've seen with the callsign KN4WTF, oldest first.
- Israel, Eric J FL2017-11-25 → cancelled 2018-05-05
- DZIUBA, CHRISTOPHER M TN2020-06-09 active