Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AI7UD callsign genealogy
Currently held by Oslin, Christopher 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 AI7UD's current licensee, walking backwards.
- Oslin, Christopher RORgranted 2016-10-28cancelled 2023-11-21
Successor callsigns
Callsigns held now by people who previously held AI7UD.
No current licensee on record previously held this callsign.