Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W7ZZT callsign genealogy
Currently held by Bergstraesser, Michael R
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 W7ZZT's current licensee, walking backwards.
- Davis, Bradley LWAgranted 2017-09-15cancelled 2017-10-06
Successor callsigns
Callsigns held now by people who previously held W7ZZT.
- Bergstraesser, Michael RCAgranted 2015-02-07
All historical holders
Every license row we've seen with the callsign W7ZZT, oldest first.
- Bergstraesser, Michael R CA2012-05-10 → cancelled 2015-02-07
- Davis, Bradley L WA2017-10-06 active