Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K7XX callsign genealogy
Currently held by Weiss, Grover J
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 K7XX's current licensee, walking backwards.
- Weiss, Grover JAZgranted 2014-02-25cancelled 2014-10-11
Successor callsigns
Callsigns held now by people who previously held K7XX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K7XX, oldest first.
- HERON, GERALD E WA2002-10-09 → cancelled 2012-11-16
- Weiss, Grover J AZ2014-10-11 active