Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N0DCW callsign genealogy
Currently held by Williams, Derek
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 N0DCW's current licensee, walking backwards.
- Williams, Derek CCOgranted 2020-07-20cancelled 2020-08-11
Successor callsigns
Callsigns held now by people who previously held N0DCW.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N0DCW, oldest first.
- HEREID SR, MICHAEL L IA2008-02-08 → cancelled 2020-04-08
- Williams, Derek ID2020-08-11 active