Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AI7CO callsign genealogy
Currently held by Lambert Jr, Arthur R
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 AI7CO's current licensee, walking backwards.
- Lambert Jr, Arthur RORgranted 2020-08-05cancelled 2020-08-20
Successor callsigns
Callsigns held now by people who previously held AI7CO.
No current licensee on record previously held this callsign.