90:88:A9:A Yi Tunnel(beijing) Technology Co.,Ltd
Every MAC address from 90:88:A9:A0:00:00 to 90:88:A9:AF:FF:FF belongs to a block the IEEE assigned to Yi Tunnel(beijing) Technology Co.,Ltd. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 90:88:A9:A belongs to
Written 90:88:A9:A, 90-88-A9-A or 9088A9A, depending on the system. Look up a full address.
Prefix
90:88:A9:A/28
Organization
Yi Tunnel(beijing) Technology Co.,Ltd
Registry
MA-M (28 bits)
Addresses
1,048,576
First address
90:88:A9:A0:00:00
Last address
90:88:A9:AF:FF:FF
Address type
Globally unique, unicast
Registered address
Room1511, Block B, SOHO Shangdu North Tower, 100020 Chaoyang District, Beijing, Beijing CN 100020
Parent block
Inside 90:88:A9
This MA-M block is carved from the 24-bit block 90:88:A9, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.