What this means
The IEEE assigned the MA-M block 0055DA4 to Datapath Limited. 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 00:55:DA:4, it is Datapath Limited hardware.
Frequently Asked Questions
Who owns MAC prefix 0055DA4?
0055DA4 is registered to Datapath Limited in the IEEE MA-M registry.
What does the MA-M registry type mean?
An MA-M assignment covers 28 bits of the address, giving the vendor 1,048,576 device addresses, a quarter of a full MA-L block. Datapath Limited's block covers 1,048,576 addresses.
What devices use 0055DA4?
Any network device with a MAC address starting 00:55:DA:4 was manufactured by or for Datapath Limited.