Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WZ7TFB callsign genealogy
Currently held by Masterson, Tad L
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 WZ7TFB's current licensee, walking backwards.
- Masterson, Tad LWAgranted 2011-07-28cancelled 2014-01-11
Successor callsigns
Callsigns held now by people who previously held WZ7TFB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WZ7TFB, oldest first.
- MASTERSON, TAD L WA1998-07-15 → cancelled 2010-07-16
- Masterson, Tad L WA2014-01-11 → cancelled 2026-03-07