Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KB9EUL callsign genealogy
Currently held by PINKERTON, MATTHEW L
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 KB9EUL's current licensee, walking backwards.
- Pinkerton, Matthew LFLgranted 2022-12-23cancelled 2023-01-10
Successor callsigns
Callsigns held now by people who previously held KB9EUL.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB9EUL, oldest first.
- PINKERTON, MATTHEW L IN2001-02-09 → cancelled 2012-05-16
- Pinkerton, Matthew L FL2023-01-10 active