Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AI4FI callsign genealogy
Currently held by LAWRENCE, MARK 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 AI4FI's current licensee, walking backwards.
- LAWRENCE, MARK SVAgranted 2004-03-03cancelled 2004-04-29
Successor callsigns
Callsigns held now by people who previously held AI4FI.
No current licensee on record previously held this callsign.