Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4TBR callsign genealogy
Currently held by Tampa Bay React, Inc.
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 W4TBR's current licensee, walking backwards.
- KJ4GRDcancelledTampa Bay React, Inc.FLgranted 2008-09-16cancelled 2008-10-15
Successor callsigns
Callsigns held now by people who previously held W4TBR.
No current licensee on record previously held this callsign.