78:D8:00:2 Shanghai Espacetime Technology Co.,Ltd.
Every MAC address from 78:D8:00:20:00:00 to 78:D8:00:2F:FF:FF belongs to a block the IEEE assigned to Shanghai Espacetime Technology Co.,Ltd.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 78:D8:00:2 belongs to
Written 78:D8:00:2, 78-D8-00-2 or 78D8002, depending on the system. Look up a full address.
Prefix
78:D8:00:2/28
Organization
Shanghai Espacetime Technology Co.,Ltd.
Registry
MA-M (28 bits)
Addresses
1,048,576
First address
78:D8:00:20:00:00
Last address
78:D8:00:2F:FF:FF
Address type
Globally unique, unicast
Registered address
Room 1202-A ,NO.570 , Shengxia Road , Pudong Shanghai CN 200120
Parent block
Inside 78:D8:00
This MA-M block is carved from the 24-bit block 78:D8:00, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.