Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N9MRK callsign genealogy
Currently held by DALY JR, JAMES A
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 N9MRK's current licensee, walking backwards.
- Harcourt, Mark PWIgranted 2007-04-02cancelled 2007-04-24
Successor callsigns
Callsigns held now by people who previously held N9MRK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N9MRK, oldest first.
- DALY JR, JAMES A IL1991-09-17 → cancelled 2003-09-18
- Harcourt, Mark P OK2017-02-11 active