Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WT6F callsign genealogy
Currently held by HECKEROTH, WILLIAM G
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 WT6F's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held WT6F.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WT6F, oldest first.
- BACA, MICHAEL J CA2009-07-29 → cancelled 2020-10-29
- HECKEROTH, WILLIAM G CO2020-11-17 active