Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AI4AA callsign genealogy
Currently held by Central Alabama HF/VHF Contesting Club
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 AI4AA's current licensee, walking backwards.
- KG4LYIcancelledCentral Alabama HF/VHF Contesting ClubALgranted 2001-02-21cancelled 2001-03-20
Successor callsigns
Callsigns held now by people who previously held AI4AA.
- MADDOCK, WILLIAM CTNgranted 2016-10-19cancelled 2018-05-22