Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KB9OEQ callsign genealogy
Currently held by FOSTER, ROBERT
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 KB9OEQ's current licensee, walking backwards.
- FOSTER, ROBERTILgranted 2023-06-01cancelled 2025-03-21
Successor callsigns
Callsigns held now by people who previously held KB9OEQ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB9OEQ, oldest first.
- FOSTER, ROBERT IL1997-11-07 → cancelled 2008-08-01
- FOSTER, ROBERT IL2025-03-21 active