Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N0ACD callsign genealogy
Currently held by BIGELOW, LEONARD
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 N0ACD's current licensee, walking backwards.
- DUFRENNE, ADAM CMNgranted 2022-02-18cancelled 2022-03-12
Successor callsigns
Callsigns held now by people who previously held N0ACD.
- BIGELOW, LEONARDFLgranted 2001-04-18cancelled 2001-06-08
All historical holders
Every license row we've seen with the callsign N0ACD, oldest first.
- BIGELOW, LEONARD FL2001-06-08 → cancelled 2013-06-11
- DUFRENNE, ADAM C MN2022-03-12 active