MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
Prefix74:25:84:20:00:00 /28
Vendor addressNo. 168, Jiaotong North Road, Wujiang District Suzhou Jiangsu CN 215200
Country🇨🇳 China
RegisteredSep 27, 2024
Block range74:25:84:20:00:00– 74:25:84:2F: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
74:25:84:10:00:00 /28
Creative Synergy Ventures Pty. Ltd.
Next
74:25:84:30:00:00 /28
alt digital s.r.o.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Suzhou Surinno Photonics Technology Co.Ltd. holds 1 registered blocks in the IEEE registry, ranking #28,714 of 33,421 organizations by block count.