Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K0DNW callsign genealogy
Currently held by Mc Grath, Roger 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 K0DNW's current licensee, walking backwards.
- MCGRATH, MARK DSCgranted 2007-06-29cancelled 2014-09-27
Successor callsigns
Callsigns held now by people who previously held K0DNW.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K0DNW, oldest first.
- Mc Grath, Roger D SC2006-12-19 → cancelled 2012-10-05
- MCGRATH, MARK D FL2024-09-04 active