Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W1ARM callsign genealogy
Currently held by MacKenzie, Alexander 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 W1ARM's current licensee, walking backwards.
- Kuniholm, Jonathan FORgranted 2016-02-19cancelled 2016-03-15
Successor callsigns
Callsigns held now by people who previously held W1ARM.
- MacKenzie, Alexander RFLgranted 2006-09-14cancelled 2007-07-20
All historical holders
Every license row we've seen with the callsign W1ARM, oldest first.
- MacKenzie, Alexander R MA1999-07-28 → cancelled 2005-03-31
- Kuniholm, Jonathan F OR2016-03-15 active