Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AB7ZZ callsign genealogy
Currently held by KAI, TETSUO
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 AB7ZZ's current licensee, walking backwards.
- Lenton, Darrin EIDgranted 2020-11-03cancelled 2020-12-22
Successor callsigns
Callsigns held now by people who previously held AB7ZZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AB7ZZ, oldest first.
- KAI, TETSUO AZ1998-12-16 → cancelled 2010-09-15
- Lenton, Darrin E ID2020-12-22 active