What this means
The IEEE assigned the MA-L block 000187 to I2SE GmbH. 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 00:01:87, it is I2SE GmbH hardware.
Frequently Asked Questions
Who owns MAC prefix 000187?
000187 is registered to I2SE GmbH 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. I2SE GmbH's block covers 16,777,216 addresses.
What devices use 000187?
Any network device with a MAC address starting 00:01:87 was manufactured by or for I2SE GmbH.