Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K3JMB callsign genealogy
Currently held by Beck, Joseph 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 K3JMB's current licensee, walking backwards.
- Black, Joshua MMDgranted 2023-07-04cancelled 2024-08-03
Successor callsigns
Callsigns held now by people who previously held K3JMB.
- Beck, Joseph MNYgranted 2014-01-31cancelled 2015-07-18
All historical holders
Every license row we've seen with the callsign K3JMB, oldest first.
- Beck, Joseph M NY2013-05-21 → cancelled 2014-01-31
- Black, Joshua M MD2024-08-03 active