Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K2DU callsign genealogy
Currently held by Bell, John 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 K2DU's current licensee, walking backwards.
- Bell, John MSCgranted 2000-10-03cancelled 2007-07-10
Successor callsigns
Callsigns held now by people who previously held K2DU.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K2DU, oldest first.
- DE FREITAS III, WILLIAM S NJ1997-07-15 → cancelled 2005-02-08
- Bell, John M SC2017-04-13 active