A4:58:0F:4 Shenzhen City billion Leiden science and Technology Co., Ltd.
Every MAC address from A4:58:0F:40:00:00 to A4:58:0F:4F:FF:FF belongs to a block the IEEE assigned to Shenzhen City billion Leiden science and Technology Co., Ltd.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who A4:58:0F:4 belongs to
Written A4:58:0F:4, A4-58-0F-4 or A4580F4, depending on the system. Look up a full address.
Prefix
A4:58:0F:4/28
Organization
Shenzhen City billion Leiden science and Technology Co., Ltd.
Registry
MA-M (28 bits)
Addresses
1,048,576
First address
A4:58:0F:40:00:00
Last address
A4:58:0F:4F:FF:FF
Address type
Globally unique, unicast
Registered address
Shenzhen City, Baoan District Songgang Street Community Goodrich Tantou Industrial Park plant building 2 Shenzhen City Guangdong Province CN 518000
Parent block
Inside A4:58:0F
This MA-M block is carved from the 24-bit block A4:58:0F, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.