Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W7GTV callsign genealogy
Currently held by Houston, Robert M
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 W7GTV's current licensee, walking backwards.
- Houston, Robert MORgranted 2016-06-22cancelled 2016-07-19
Successor callsigns
Callsigns held now by people who previously held W7GTV.
- Houston, Robert MAZgranted 2020-06-23
All historical holders
Every license row we've seen with the callsign W7GTV, oldest first.
- GALLAGHER, JAMES A AZ1993-11-02 → cancelled 2005-11-03
- Houston, Robert M AZ2016-07-19 → cancelled 2020-06-23