Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4TFR callsign genealogy
Currently held by Tyndall Family 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 W4TFR's current licensee, walking backwards.
- KJ4WIOcancelledTyndall Family Amateur Radio ClubGAgranted 2010-07-06cancelled 2010-07-27
Successor callsigns
Callsigns held now by people who previously held W4TFR.
No current licensee on record previously held this callsign.