What this means
The IEEE assigned the MA-M block DCE5331 to Ambi Labs 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 DC:E5:33:1, it is Ambi Labs Limited hardware.
Frequently Asked Questions
Who owns MAC prefix DCE5331?
DCE5331 is registered to Ambi Labs 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. Ambi Labs Limited's block covers 1,048,576 addresses.
What devices use DCE5331?
Any network device with a MAC address starting DC:E5:33:1 was manufactured by or for Ambi Labs Limited.