Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KK4TCK callsign genealogy
Currently held by LEWIS, THERESA
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 KK4TCK's current licensee, walking backwards.
- LEWIS, THERESAWAgranted 2022-08-30cancelled 2022-09-17
Successor callsigns
Callsigns held now by people who previously held KK4TCK.
- Turner, Robert LCAgranted 2018-01-13
All historical holders
Every license row we've seen with the callsign KK4TCK, oldest first.
- TURNER II, ROBERT L PA2013-08-12 → cancelled 2018-01-13
- LEWIS, THERESA WA2022-09-17 active