Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AF6MK callsign genealogy
Currently held by Hwang, Ji Tammy
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 AF6MK's current licensee, walking backwards.
- Hwang, Ji Tammy YCAgranted 2019-05-14cancelled 2019-12-24
Successor callsigns
Callsigns held now by people who previously held AF6MK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AF6MK, oldest first.
- Hwang, Ji Tammy CA2004-10-06 → cancelled 2016-10-07
- Hwang, Ji Tammy Y CA2019-12-24 active