Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AI4M callsign genealogy
Currently held by BRIDGES, WINBURN S
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 AI4M's current licensee, walking backwards.
- BRIDGES, WINBURN SNCgranted 1998-10-20cancelled 2002-06-04
Successor callsigns
Callsigns held now by people who previously held AI4M.
- MOTT, ROBERT WCOgranted 2000-05-16cancelled 2001-09-22
All historical holders
Every license row we've seen with the callsign AI4M, oldest first.
- MOTT, ROBERT W CO1996-06-14 → cancelled 2000-05-16
- BRIDGES, WINBURN S NC2022-03-08 active