Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4SFI callsign genealogy
Currently held by WOOD, FREDDIE M
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 W4SFI's current licensee, walking backwards.
- INGRAM, STANLEY FNCgranted 2012-07-18cancelled 2018-03-20
Successor callsigns
Callsigns held now by people who previously held W4SFI.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4SFI, oldest first.
- WOOD, FREDDIE M CA1997-01-15 → cancelled 2009-01-16
- INGRAM, STANLEY F NC2018-03-20 active