Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KB5ZZT callsign genealogy
Currently held by HUBBARD, GREGORY A
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 KB5ZZT's current licensee, walking backwards.
- HUBBARD, GREGORY ATXgranted 2009-02-24cancelled 2009-04-11
Successor callsigns
Callsigns held now by people who previously held KB5ZZT.
All historical holders
Every license row we've seen with the callsign KB5ZZT, oldest first.
- HUBBARD, GREGORY A TX2019-02-08 → cancelled 2019-05-21
- —— → cancelled 1998-01-07