Confidence: Medium · Source: FCC ULS · As of 2026-09-10
AI4MP callsign genealogy
Currently held by Lappington, John P
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 AI4MP's current licensee, walking backwards.
- Lappington, John PGAgranted 2005-09-30cancelled 2005-10-29
Successor callsigns
Callsigns held now by people who previously held AI4MP.
No current licensee on record previously held this callsign.