Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AI4BK callsign genealogy
Currently held by Stone, Martin J
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 AI4BK's current licensee, walking backwards.
- Stone, Martin JSCgranted 2002-10-30cancelled 2003-09-12
Successor callsigns
Callsigns held now by people who previously held AI4BK.
No current licensee on record previously held this callsign.