70:B3:D5:2B:A Active Brains
Every MAC address from 70:B3:D5:2B:A0:00 to 70:B3:D5:2B:AF:FF belongs to a block the IEEE assigned to Active Brains. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 70:B3:D5:2B:A belongs to
Written 70:B3:D5:2B:A, 70-B3-D5-2B-A or 70B3D52BA, depending on the system. Look up a full address.
Prefix
70:B3:D5:2B:A/36
Organization
Active Brains
Registry
MA-S (36 bits)
Addresses
4,096
First address
70:B3:D5:2B:A0:00
Last address
70:B3:D5:2B:AF:FF
Address type
Globally unique, unicast
Registered address
Yokohama Mitsui Bldg.12F, 1-1-2 Takashima, Nishi-ku Yokohama Kanagawa JP 220-0011
Parent block
Inside 70:B3:D5
This MA-S block is carved from the 24-bit block 70:B3:D5, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.
Same organization
Other blocks assigned to Active Brains
2 more blocks registered under the same name.