Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB3FXM 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 KB3FXM's current licensee, walking backwards.
- Gelman, Joshua MPAgranted 2020-12-09cancelled 2022-08-04
Successor callsigns
Callsigns held now by people who previously held KB3FXM.
- Gelman, Joshua MPAgranted 2020-12-09cancelled 2022-08-04
All historical holders
Every license row we've seen with the callsign KB3FXM, oldest first.
- Gelman, Joshua M PA2000-12-27 → cancelled 2001-03-27
- Gelman, Joshua M PA2022-08-04 active