Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N0KDN callsign genealogy
Currently held by Rolwes, James
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 N0KDN's current licensee, walking backwards.
- Rolwes, JamesMOgranted 2025-06-10cancelled 2025-12-09
Successor callsigns
Callsigns held now by people who previously held N0KDN.
- JACKSON, MARK ETXgranted 2026-08-27
All historical holders
Every license row we've seen with the callsign N0KDN, oldest first.
- JACKSON, MARK E MO2016-08-09 → cancelled 2016-10-25
- Rolwes, James MO2025-12-09 active