Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N1DFI callsign genealogy
Currently held by O ROURKE, SHAWN P
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 N1DFI's current licensee, walking backwards.
- O ROURKE, SHAWN PCOgranted 2014-11-24cancelled 2017-02-14
Successor callsigns
Callsigns held now by people who previously held N1DFI.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N1DFI, oldest first.
- INGHRAM, RICHARD I NH1994-11-23 → cancelled 2006-11-25
- O ROURKE, SHAWN P CO2017-02-14 active