Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KA0JAK callsign genealogy
Currently held by karkiewicz, jason A
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 KA0JAK's current licensee, walking backwards.
- KARKIEWICZ, JASON AINgranted 2020-10-15cancelled 2021-07-16
Successor callsigns
Callsigns held now by people who previously held KA0JAK.
No current licensee on record previously held this callsign.