MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
Prefix90:15:64:D0:00:00 /28
Vendor addressJingquan Impression Building No.18, 128 Ma'anshan Road, Dantu District Zhenjiang Jiangsu CN 212114
Country🇨🇳 China
RegisteredFeb 8, 2024
Block range90:15:64:D0:00:00– 90:15:64: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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Guiyag Electrlcal Control Equipment Co.,Ltd
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Jiangsu Kangjie Data Co., Ltd. holds 1 registered blocks in the IEEE registry, ranking #17,130 of 33,427 organizations by block count.