70:B3:D5:3E:8 COSMOS web Co., Ltd.
Every MAC address from 70:B3:D5:3E:80:00 to 70:B3:D5:3E:8F:FF belongs to a block the IEEE assigned to COSMOS web Co., Ltd.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 70:B3:D5:3E:8 belongs to
Written 70:B3:D5:3E:8, 70-B3-D5-3E-8 or 70B3D53E8, depending on the system. Look up a full address.
Prefix
70:B3:D5:3E:8/36
Organization
COSMOS web Co., Ltd.
Registry
MA-S (36 bits)
Addresses
4,096
First address
70:B3:D5:3E:80:00
Last address
70:B3:D5:3E:8F:FF
Address type
Globally unique, unicast
Registered address
5-4-1 Kuryu Aoba-ku Sendai-shi Miyagi JP 989-3122
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.