What this means
The IEEE assigned the MA-L block 000291 to Open Network 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 00:02:91, it is Open Network Co., Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 000291?
000291 is registered to Open Network 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. Open Network Co., Ltd.'s block covers 16,777,216 addresses.
What devices use 000291?
Any network device with a MAC address starting 00:02:91 was manufactured by or for Open Network Co., Ltd..