Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9BAT callsign genealogy
Currently held by STEPHENS III, JAMES E
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 K9BAT's current licensee, walking backwards.
- STEPHENS III, JAMES EINgranted 2019-10-03cancelled 2024-05-03
Successor callsigns
Callsigns held now by people who previously held K9BAT.
- Rolniak, John WAZgranted 2022-04-12
All historical holders
Every license row we've seen with the callsign K9BAT, oldest first.
- Rolniak, John W AZ2013-05-03 → cancelled 2022-04-12
- STEPHENS III, JAMES E IN2024-05-03 active