Confidence: Medium · Source: FCC ULS · As of 2026-09-11
K4VTZ callsign genealogy
Currently held by MARTIN SR, RICHARD W
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 K4VTZ's current licensee, walking backwards.
- Bhattacharya, ShubhajitFLgranted 2021-07-26cancelled 2021-08-13
Successor callsigns
Callsigns held now by people who previously held K4VTZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4VTZ, oldest first.
- MARTIN SR, RICHARD W KY1990-08-21 → cancelled 2002-08-22
- Bhattacharya, Shubhajit FL2021-08-13 active