Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N1RDI callsign genealogy
Currently held by MacGregor, Ian K
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 N1RDI's current licensee, walking backwards.
- MacGregor, Ian KNHgranted 2021-02-18cancelled 2021-03-09
Successor callsigns
Callsigns held now by people who previously held N1RDI.
- ARCHER, JAMES ACTgranted 2009-05-28cancelled 2021-08-05
All historical holders
Every license row we've seen with the callsign N1RDI, oldest first.
- MacGregor, Ian K NH2021-03-09 active
- —— → cancelled 1999-08-04