Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD5UI callsign genealogy
Currently held by HOFFMAN, IAN M
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 AD5UI's current licensee, walking backwards.
- HOFFMAN, IAN MNMgranted 2005-05-10cancelled 2005-06-20
Successor callsigns
Callsigns held now by people who previously held AD5UI.
- HOFFMAN, IAN MNHgranted 2006-08-18cancelled 2009-06-03