Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AI6S callsign genealogy
Currently held by ROBERTS, JOSEPH D
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 AI6S's current licensee, walking backwards.
- ROBERTS, JOSEPH DCAgranted 2002-11-02cancelled 2010-05-07
Successor callsigns
Callsigns held now by people who previously held AI6S.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AI6S, oldest first.
- BALDO, COLUMBUS CA1998-04-06 → cancelled 2010-04-07
- ROBERTS, JOSEPH D CA2020-03-10 active