Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AI7XW callsign genealogy
Currently held by MARTH, CHRIS 'OTTO' D
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 AI7XW's current licensee, walking backwards.
- MARTH, CHRIS 'OTTO' DMTgranted 2024-03-12cancelled 2024-05-03
Successor callsigns
Callsigns held now by people who previously held AI7XW.
No current licensee on record previously held this callsign.