Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AI4UU callsign genealogy
Currently held by HARRISON, JAMES D
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 AI4UU's current licensee, walking backwards.
- HARRISON, JAMES DNCgranted 2001-08-29cancelled 2007-03-12
Successor callsigns
Callsigns held now by people who previously held AI4UU.
- HARRISON, JAMES DNCgranted 2017-04-11