Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4IDA callsign genealogy
Currently held by Davidson, Ian
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 W4IDA's current licensee, walking backwards.
- Davidson, IanFLgranted 2022-11-09cancelled 2024-05-04
Successor callsigns
Callsigns held now by people who previously held W4IDA.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4IDA, oldest first.
- KING JR, JAMES H SC2008-04-26 → cancelled 2020-07-16
- Davidson, Ian FL2024-05-04 active