Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AI6XU callsign genealogy
Currently held by Walker, Mark 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 AI6XU's current licensee, walking backwards.
- Walker, Mark RCAgranted 2017-03-13cancelled 2017-06-26
Successor callsigns
Callsigns held now by people who previously held AI6XU.
No current licensee on record previously held this callsign.