Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N0RWJ callsign genealogy
Currently held by COCHRAN, MARK 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 N0RWJ's current licensee, walking backwards.
- Johnson, Robert WMNgranted 2013-05-16cancelled 2020-07-14
Successor callsigns
Callsigns held now by people who previously held N0RWJ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N0RWJ, oldest first.
- COCHRAN, MARK D KS1992-04-07 → cancelled 2004-04-08
- Johnson, Robert W MN2020-07-14 active