Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K8MLB callsign genealogy
Currently held by Barrett, 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 K8MLB's current licensee, walking backwards.
- Barrett, Matthew LMIgranted 2020-02-05cancelled 2022-04-15
Successor callsigns
Callsigns held now by people who previously held K8MLB.
- GILLSON, TODD MNYgranted 2017-06-02cancelled 2019-07-09
All historical holders
Every license row we've seen with the callsign K8MLB, oldest first.
- GILLSON, TODD M NY2017-02-07 → cancelled 2017-06-02
- Barrett, Matthew L MI2022-04-15 active