Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K1WTF callsign genealogy
Currently held by KAPLAN, STANLEY
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 K1WTF's current licensee, walking backwards.
- KOHLER, TYLER CCOgranted 2013-03-25cancelled 2016-11-08
Successor callsigns
Callsigns held now by people who previously held K1WTF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K1WTF, oldest first.
- KAPLAN, STANLEY MA2004-08-03 → cancelled 2016-10-19
- KOHLER, TYLER C CO2016-11-08 active