Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N5ORC callsign genealogy
Currently held by GRUNERT, DAVID R
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 N5ORC's current licensee, walking backwards.
- HARKNESS, ROBERT CTXgranted 2000-02-02cancelled 2007-05-15
Successor callsigns
Callsigns held now by people who previously held N5ORC.
- HARKNESS, ROBERT CTXgranted 2017-06-21
All historical holders
Every license row we've seen with the callsign N5ORC, oldest first.
- GRUNERT, DAVID R VA1993-10-19 → cancelled 2005-10-20
- HARKNESS, ROBERT C TX2007-05-15 → cancelled 2007-09-18