Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KT4TZ callsign genealogy
Currently held by MITCHELL, EDWARD S
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 KT4TZ's current licensee, walking backwards.
- MC LAMB, LEE JFLgranted 2008-01-08cancelled 2017-07-18
Successor callsigns
Callsigns held now by people who previously held KT4TZ.
- MITCHELL, EDWARD SFLgranted 2006-01-07cancelled 2007-09-14
All historical holders
Every license row we've seen with the callsign KT4TZ, oldest first.
- MITCHELL, EDWARD S FL2003-07-02 → cancelled 2006-01-07
- MC LAMB, LEE J FL2017-07-18 active