Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AI5FS callsign genealogy
Currently held by Johnston, Walter E
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 AI5FS's current licensee, walking backwards.
- Johnston, Walter ETXgranted 2021-12-14cancelled 2022-01-10
Successor callsigns
Callsigns held now by people who previously held AI5FS.
No current licensee on record previously held this callsign.