What this means
The IEEE assigned the MA-L block 9031CD to Onyx Healthcare Inc.. 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 90:31:CD, it is Onyx Healthcare Inc. hardware.
Frequently Asked Questions
Who owns MAC prefix 9031CD?
9031CD is registered to Onyx Healthcare Inc. 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. Onyx Healthcare Inc.'s block covers 16,777,216 addresses.
What devices use 9031CD?
Any network device with a MAC address starting 90:31:CD was manufactured by or for Onyx Healthcare Inc..