Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WT4K callsign genealogy
Currently held by BAER, JEFFREY 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 WT4K's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held WT4K.
No current licensee on record previously held this callsign.