Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N0DWS callsign genealogy
Currently held by PETERSEN, MARTIN D
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 N0DWS's current licensee, walking backwards.
- Spence, David WCOgranted 2019-06-18cancelled 2019-07-16
Successor callsigns
Callsigns held now by people who previously held N0DWS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N0DWS, oldest first.
- PETERSEN, MARTIN D MN1997-10-06 → cancelled 2009-10-07
- Spence, David W CO2019-07-16 active