Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K0BLU callsign genealogy
Currently held by Goodman, Christopher M
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 K0BLU's current licensee, walking backwards.
- Goodman, Christopher MMNgranted 2018-08-18cancelled 2019-10-08
Successor callsigns
Callsigns held now by people who previously held K0BLU.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K0BLU, oldest first.
- HART, GILBERT J IA2007-06-26 → cancelled 2019-09-18
- Goodman, Christopher M MN2019-10-08 active