Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB9CEO callsign genealogy
Currently held by HOLMES, ALAN J
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 KB9CEO's current licensee, walking backwards.
- Holmes, Alan JFLgranted 2022-06-15cancelled 2022-07-06
Successor callsigns
Callsigns held now by people who previously held KB9CEO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB9CEO, oldest first.
- HOLMES, ALAN J IL1989-03-14 → cancelled 2001-03-15
- Holmes, Alan J FL2022-07-06 active