Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KZ5T callsign genealogy
Currently held by ROBINSON, LAWRENCE E
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 KZ5T's current licensee, walking backwards.
- ROBINSON, LAWRENCE EKSgranted 1994-07-25cancelled 2002-12-10
Successor callsigns
Callsigns held now by people who previously held KZ5T.
- JEFFCOAT, THOMAS WLAgranted 2000-11-21cancelled 2010-08-24
All historical holders
Every license row we've seen with the callsign KZ5T, oldest first.
- JEFFCOAT, THOMAS W LA1998-11-05 → cancelled 2000-11-21
- ROBINSON, LAWRENCE E TX2024-12-05 active