What this means
The IEEE assigned the MA-L block 000081 to Bay Networks. 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 00:00:81, it is Bay Networks hardware.
Frequently Asked Questions
Who owns MAC prefix 000081?
000081 is registered to Bay Networks 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. Bay Networks's block covers 16,777,216 addresses.
What devices use 000081?
Any network device with a MAC address starting 00:00:81 was manufactured by or for Bay Networks.