40:11:75:D NanJing HuaStart Network Technology Co.,Ltd.
Every MAC address from 40:11:75:D0:00:00 to 40:11:75:DF:FF:FF belongs to a block the IEEE assigned to NanJing HuaStart Network Technology Co.,Ltd.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 40:11:75:D belongs to
Written 40:11:75:D, 40-11-75-D or 401175D, depending on the system. Look up a full address.
Prefix
40:11:75:D/28
Organization
NanJing HuaStart Network Technology Co.,Ltd.
Registry
MA-M (28 bits)
Addresses
1,048,576
First address
40:11:75:D0:00:00
Last address
40:11:75:DF:FF:FF
Address type
Globally unique, unicast
Registered address
Room 568,Longmian Road,Jiangning District Nanjing Jiang Su CN 210000
Parent block
Inside 40:11:75
This MA-M block is carved from the 24-bit block 40:11:75, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.