B4:DF:43:A Huaqin Technology Co.,Ltd
Every MAC address from B4:DF:43:A0:00:00 to B4:DF:43:AF:FF:FF belongs to a block the IEEE assigned to Huaqin Technology Co.,Ltd. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who B4:DF:43:A belongs to
Written B4:DF:43:A, B4-DF-43-A or B4DF43A, depending on the system. Look up a full address.
Prefix
B4:DF:43:A/28
Organization
Huaqin Technology Co.,Ltd
Registry
MA-M (28 bits)
Addresses
1,048,576
First address
B4:DF:43:A0:00:00
Last address
B4:DF:43:AF:FF:FF
Address type
Globally unique, unicast
Registered address
Pudong New Area Shanghai CN 201203
Parent block
Inside B4:DF:43
This MA-M block is carved from the 24-bit block B4:DF:43, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.
Same organization
Other blocks assigned to Huaqin Technology Co.,Ltd
3 more blocks registered under the same name.