Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KA4JAM callsign genealogy
Currently held by Maltz, Jacob
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 KA4JAM's current licensee, walking backwards.
- Maltz, JacobNCgranted 2022-07-14cancelled 2023-04-04
Successor callsigns
Callsigns held now by people who previously held KA4JAM.
- Maltz, JacobNCgranted 2024-09-27cancelled 2024-10-18