Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AI6ZD callsign genealogy
Currently held by Martis, Matthew S
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 AI6ZD's current licensee, walking backwards.
- Martis, Matthew SCAgranted 2010-02-11cancelled 2017-10-10
Successor callsigns
Callsigns held now by people who previously held AI6ZD.
No current licensee on record previously held this callsign.