Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WL3ISO callsign genealogy
Currently held by CERES
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 WL3ISO's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held WL3ISO.
No current licensee on record previously held this callsign.