Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4FWB callsign genealogy
Currently held by Playground Amateur Radio Club
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 K4FWB's current licensee, walking backwards.
- KI4UVWcancelledPlayground Amateur Radio ClubFLgranted 2007-04-02cancelled 2007-05-19
Successor callsigns
Callsigns held now by people who previously held K4FWB.
No current licensee on record previously held this callsign.