B4:DF:43:4 Shenzhen Huizhen Fishery Co., Ltd.
Every MAC address from B4:DF:43:40:00:00 to B4:DF:43:4F:FF:FF belongs to a block the IEEE assigned to Shenzhen Huizhen Fishery Co., Ltd.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who B4:DF:43:4 belongs to
Written B4:DF:43:4, B4-DF-43-4 or B4DF434, depending on the system. Look up a full address.
Prefix
B4:DF:43:4/28
Organization
Shenzhen Huizhen Fishery Co., Ltd.
Registry
MA-M (28 bits)
Addresses
1,048,576
First address
B4:DF:43:40:00:00
Last address
B4:DF:43:4F:FF:FF
Address type
Globally unique, unicast
Registered address
Room 2101, 21th Floor, Bldg 8, Qianhai Kexing Technology Park, Jinhai Road, Xixiang, Baoan, Shenzhen CN 518000
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.