Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AI4PT callsign genealogy
Currently held by CLARK, JOHN M
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 AI4PT's current licensee, walking backwards.
- Clark, John MFLgranted 2003-11-13cancelled 2006-05-16
Successor callsigns
Callsigns held now by people who previously held AI4PT.
No current licensee on record previously held this callsign.