What this means
The IEEE assigned the MA-L block 00033E to Tateyama System Laboratory 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 00:03:3E, it is Tateyama System Laboratory Co., Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 00033E?
00033E is registered to Tateyama System Laboratory 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. Tateyama System Laboratory Co., Ltd.'s block covers 16,777,216 addresses.
What devices use 00033E?
Any network device with a MAC address starting 00:03:3E was manufactured by or for Tateyama System Laboratory Co., Ltd..