Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB3EBA callsign genealogy
Currently held by Riddle, Justin 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 KB3EBA's current licensee, walking backwards.
- Riddle, Justin AVAgranted 2023-11-08cancelled 2023-12-08
Successor callsigns
Callsigns held now by people who previously held KB3EBA.
- Harlow, Michael PPAgranted 2021-05-27
All historical holders
Every license row we've seen with the callsign KB3EBA, oldest first.
- Harlow, Michael P PA1999-07-13 → cancelled 2001-06-02
- Riddle, Justin A VA2023-12-08 active