Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W7TBC callsign genealogy
Currently held by THUNDERBIRD AMATEUR RADIO CLUB
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 W7TBC's current licensee, walking backwards.
- KC7MKZcancelledTHUNDERBIRD AMATEUR RADIO CLUBAZgranted 1995-07-27cancelled 2002-09-27
Successor callsigns
Callsigns held now by people who previously held W7TBC.
No current licensee on record previously held this callsign.