Amphenol
Amphenol holds 2 OUI prefixes in the IEEE registry. Each prefix is the first three octets of a MAC address and covers a block of 16,777,216 addresses, so devices built by Amphenol draw from a pool of about 33,554,432 possible MAC addresses in total.
Registered address: 20 Valley St. Endicott New York US 13760
All 2 prefixes
Have a full MAC address? Look it up to see which of these prefixes it belongs to — or browse the full manufacturer directory.