What this means
The IEEE assigned the MA-M block A4580F4 to Shenzhen City billion Leiden science and Technology Co., Ltd.. Every network interface they manufacture under this block has a MAC address beginning with these digits, followed by a unique per-device identifier. If a device on your network shows a MAC starting A4:58:0F:4, it is Shenzhen City billion Leiden science and Technology Co., Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix A4580F4?
A4580F4 is registered to Shenzhen City billion Leiden science and Technology Co., Ltd. in the IEEE MA-M registry.
What does the MA-M registry type mean?
An MA-M assignment covers 28 bits of the address, giving the vendor 1,048,576 device addresses, a quarter of a full MA-L block. Shenzhen City billion Leiden science and Technology Co., Ltd.'s block covers 1,048,576 addresses.
What devices use A4580F4?
Any network device with a MAC address starting A4:58:0F:4 was manufactured by or for Shenzhen City billion Leiden science and Technology Co., Ltd..