70:B3:D5:F3:3 Beijing Vizum Technology Co.,Ltd.
Every MAC address from 70:B3:D5:F3:30:00 to 70:B3:D5:F3:3F:FF belongs to a block the IEEE assigned to Beijing Vizum Technology Co.,Ltd.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 70:B3:D5:F3:3 belongs to
Written 70:B3:D5:F3:3, 70-B3-D5-F3-3 or 70B3D5F33, depending on the system. Look up a full address.
Prefix
70:B3:D5:F3:3/36
Organization
Beijing Vizum Technology Co.,Ltd.
Registry
MA-S (36 bits)
Addresses
4,096
First address
70:B3:D5:F3:30:00
Last address
70:B3:D5:F3:3F:FF
Address type
Globally unique, unicast
Registered address
Room603, Floor6, Block2, No.1 Zhongguancun, No.81 Beiqing Road Beijing Beijing CN 100094
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.