Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KN4AAK callsign genealogy
Currently held by Kanowitz, Alan 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 KN4AAK's current licensee, walking backwards.
- Kanowitz, Alan JFlgranted 2019-07-09cancelled 2019-09-13
Successor callsigns
Callsigns held now by people who previously held KN4AAK.
- Sublette, John HNCgranted 2017-01-24
All historical holders
Every license row we've seen with the callsign KN4AAK, oldest first.
- Sublette, John H NC2017-01-04 → cancelled 2017-01-24
- Kanowitz, Alan J FL2019-09-13 active