Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AI4BU callsign genealogy
Currently held by TUCKER, WARREN A
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 AI4BU's current licensee, walking backwards.
- TUCKER, WARREN ANCgranted 2003-08-20cancelled 2003-10-06
Successor callsigns
Callsigns held now by people who previously held AI4BU.
- TUCKER, WARREN ANCgranted 2014-02-04cancelled 2026-04-01