MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
Prefix08:25:32:90:00:00 /28
Vendor addressRoom402-1,Building 1, Jingheyuan Industrial Park No.2004 Xuegang Road Gangtou Community,Bantian Street Shenzhen Guangdong CN 518129
Country🇨🇳 China
RegisteredJul 2, 2026
Block range08:25:32:90:00:00– 08:25:32:9F: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
08:25:32:80:00:00 /28
Shanghai Xinyuzhou Intelligent Technology Co., Ltd.
Next
08:25:32:A0:00:00 /28
Eveo sp. z o.o.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Shenzhen Yirun Technology Co., Ltd. holds 1 registered blocks in the IEEE registry, ranking #27,080 of 33,427 organizations by block count.