MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
Prefix90:A9:F7:D0:00:00 /28
Vendor addressRoom 901-1725, Building 4, No. 2377 Shenkun Road, Minhang District Shanghai CN 200000
Country🇨🇳 China
RegisteredSep 1, 2023
Block range90:A9:F7:D0:00:00– 90:A9:F7:DF: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
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90:A9:F7:C0:00:00 /28
SkyLine Limited Technologies Co., Ltd
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The Engineerix Group
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Shanghai Jiehezhi Technology Co., Ltd. holds 1 registered blocks in the IEEE registry, ranking #25,969 of 33,427 organizations by block count.