Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WA4BLS callsign genealogy
Currently held by HIDI, FRANK
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 WA4BLS's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held WA4BLS.
No current licensee on record previously held this callsign.