Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W6ZT callsign genealogy
Currently held by McDonough, Thomas R
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 W6ZT's current licensee, walking backwards.
- McDonough, Thomas RCAgranted 2007-02-06cancelled 2007-08-24
Successor callsigns
Callsigns held now by people who previously held W6ZT.
- PUTMAN, ROSWELL CAZgranted 2005-08-02cancelled 2017-08-03
All historical holders
Every license row we've seen with the callsign W6ZT, oldest first.
- Kline, Harry A CA1999-04-27 → cancelled 2002-11-09
- Putman, Roswell C AZ2005-04-05 → cancelled 2005-08-02
- McDonough, Thomas R CA2017-10-18 active