54:91:AF:0 Opal-RT Technologies Inc.
Every MAC address from 54:91:AF:00:00:00 to 54:91:AF:0F:FF:FF belongs to a block the IEEE assigned to Opal-RT Technologies Inc.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 54:91:AF:0 belongs to
Written 54:91:AF:0, 54-91-AF-0 or 5491AF0, depending on the system. Look up a full address.
Prefix
54:91:AF:0/28
Organization
Opal-RT Technologies Inc.
Registry
MA-M (28 bits)
Addresses
1,048,576
First address
54:91:AF:00:00:00
Last address
54:91:AF:0F:FF:FF
Address type
Globally unique, unicast
Registered address
1751 rue Richardson, Suite 1060 Montreal QC CA H3K 1G6
Parent block
Inside 54:91:AF
This MA-M block is carved from the 24-bit block 54:91:AF, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.