Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB3GIO callsign genealogy
Currently held by Gelman, Joshua 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 KB3GIO's current licensee, walking backwards.
- Gelman, Joshua MPAgranted 2022-08-04
Successor callsigns
Callsigns held now by people who previously held KB3GIO.
- Gelman, Joshua MPAgranted 2022-08-04