Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K7TWB callsign genealogy
Currently held by BALLARD, THOMAS 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 K7TWB's current licensee, walking backwards.
- BALLARD, THOMAS WORgranted 1992-03-17cancelled 2000-04-04
Successor callsigns
Callsigns held now by people who previously held K7TWB.
No current licensee on record previously held this callsign.