Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K3ABA callsign genealogy
Currently held by Rosputni, Stephen
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 K3ABA's current licensee, walking backwards.
- Rosputni, StephenNYgranted 2017-11-21cancelled 2020-03-20
Successor callsigns
Callsigns held now by people who previously held K3ABA.
No current licensee on record previously held this callsign.