68:91:D0:0 Central Railway Manufacturing
Every MAC address from 68:91:D0:00:00:00 to 68:91:D0:0F:FF:FF belongs to a block the IEEE assigned to Central Railway Manufacturing. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 68:91:D0:0 belongs to
Written 68:91:D0:0, 68-91-D0-0 or 6891D00, depending on the system. Look up a full address.
Prefix
68:91:D0:0/28
Organization
Central Railway Manufacturing
Registry
MA-M (28 bits)
Addresses
1,048,576
First address
68:91:D0:00:00:00
Last address
68:91:D0:0F:FF:FF
Address type
Globally unique, unicast
Registered address
8933 Western Way Suite 8 Jacksonville FL US 32256
Parent block
Inside 68:91:D0
This MA-M block is carved from the 24-bit block 68:91:D0, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.