What this means
The IEEE assigned the MA-L block 00039E to Tera System Co., Ltd.. Every network interface they manufacture under this block has a MAC address beginning with these digits, followed by a unique per-device identifier. If a device on your network shows a MAC starting 00:03:9E, it is Tera System Co., Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 00039E?
00039E is registered to Tera System Co., Ltd. in the IEEE MA-L registry.
What does the MA-L registry type mean?
An MA-L assignment, the IEEE's original OUI format, gives the vendor the first three octets and 16,777,216 device addresses under them. Tera System Co., Ltd.'s block covers 16,777,216 addresses.
What devices use 00039E?
Any network device with a MAC address starting 00:03:9E was manufactured by or for Tera System Co., Ltd..