Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AI4RU callsign genealogy
Currently held by Brumley, David E
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 AI4RU's current licensee, walking backwards.
- Brumley, David ETNgranted 2005-11-28cancelled 2006-09-12
Successor callsigns
Callsigns held now by people who previously held AI4RU.
- Brumley, David ETNgranted 2016-12-09