Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K2JAM callsign genealogy
Currently held by Maille, John A
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 K2JAM's current licensee, walking backwards.
- DeRousse, AshtonILgranted 2024-08-06cancelled 2025-04-19
Successor callsigns
Callsigns held now by people who previously held K2JAM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K2JAM, oldest first.
- Maille, John A NY2012-01-18 → cancelled 2024-04-04
- DeRousse, Ashton IL2025-04-19 active