MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
PrefixB8:4C:87:20:00:00 /28
Vendor addressRoom 707M, Haosheng Business Center, No. 4096, Dongbin Road, Nanshan Community, Nanshan Street, Nanshan District Shenzhen Guangdong CN 518000
Country🇨🇳 China
RegisteredJul 7, 2023
Block rangeB8:4C:87:20:00:00– B8:4C:87:2F:FF:FF
Address capacity1,048,576
AdministrationUniversally administered: its prefix comes from a block registered through the IEEE Registration Authority
TransmissionUnicast: addressed to a single device
SourceIEEE Registration Authority
Address capacity is the size of this registered block, not a count of devices actually manufactured or online. Registration identifies the organization holding the block, not a specific device model or unit.
Curious how a prefix like this turns into a full address? See how MAC addresses are structured →
Example addresses in this block
Where this block sits
Previous
B8:4C:87:10:00:00 /28
em-trak
Next
B8:4C:87:30:00:00 /28
Shenzhen Link-all Technology Co., Ltd
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Shenzhen Huixiangfeng Electronic Technology Co., Ltd. holds 1 registered blocks in the IEEE registry, ranking #26,558 of 33,421 organizations by block count.