Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WW4SF callsign genealogy
Currently held by Swamp Fox Contest Group
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 WW4SF's current licensee, walking backwards.
- KK4ZQMcancelledSwamp Fox Contest GroupSCgranted 2014-03-27cancelled 2014-09-27
Successor callsigns
Callsigns held now by people who previously held WW4SF.
No current licensee on record previously held this callsign.