Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB6WW callsign genealogy
Currently held by UNGUEZ SR, GUSTAVO T
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 AB6WW's current licensee, walking backwards.
- Kim, Joo HyunCAgranted 2016-09-22cancelled 2016-12-28
Successor callsigns
Callsigns held now by people who previously held AB6WW.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AB6WW, oldest first.
- UNGUEZ SR, GUSTAVO T CA1993-09-21 → cancelled 2005-09-22
- Kim, Joo Hyun CA2016-12-28 active