Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KA9IEP callsign genealogy
Currently held by Serkowski, Tim 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 KA9IEP's current licensee, walking backwards.
- Serkowski, Tim SWIgranted 2023-11-28cancelled 2023-12-22
Successor callsigns
Callsigns held now by people who previously held KA9IEP.
No current licensee on record previously held this callsign.