Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AI7OA callsign genealogy
Currently held by Hartman, Larry A
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 AI7OA's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held AI7OA.
No current licensee on record previously held this callsign.